Question

3х + 4y = 25
5х - бу = -9​

Answer 1

Answer:

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Answer 2

3x + 4y = 25 × 5 -------- ( 1 )

3x + 4y = 25 × 5 -------- ( 1 )5x - 6y = -9 × 3 -------- ( 2 )

3x + 4y = 25 × 5 -------- ( 1 )5x - 6y = -9 × 3 -------- ( 2 )=> 15x + 20y = 125

3x + 4y = 25 × 5 -------- ( 1 )5x - 6y = -9 × 3 -------- ( 2 )=> 15x + 20y = 125 15x - 18y = -27

3x + 4y = 25 × 5 -------- ( 1 )5x - 6y = -9 × 3 -------- ( 2 )=> 15x + 20y = 125 15x - 18y = -27 (-) (+) (+)

3x + 4y = 25 × 5 -------- ( 1 )5x - 6y = -9 × 3 -------- ( 2 )=> 15x + 20y = 125 15x - 18y = -27 (-) (+) (+) _________________

3x + 4y = 25 × 5 -------- ( 1 )5x - 6y = -9 × 3 -------- ( 2 )=> 15x + 20y = 125 15x - 18y = -27 (-) (+) (+) _________________ 38y = 152

3x + 4y = 25 × 5 -------- ( 1 )5x - 6y = -9 × 3 -------- ( 2 )=> 15x + 20y = 125 15x - 18y = -27 (-) (+) (+) _________________ 38y = 152y = 152 / 38

3x + 4y = 25 × 5 -------- ( 1 )5x - 6y = -9 × 3 -------- ( 2 )=> 15x + 20y = 125 15x - 18y = -27 (-) (+) (+) _________________ 38y = 152y = 152 / 38y = 4

3x + 4y = 25 × 5 -------- ( 1 )5x - 6y = -9 × 3 -------- ( 2 )=> 15x + 20y = 125 15x - 18y = -27 (-) (+) (+) _________________ 38y = 152y = 152 / 38y = 4Put y = 4 in equation ( 1 )

3x + 4y = 25 × 5 -------- ( 1 )5x - 6y = -9 × 3 -------- ( 2 )=> 15x + 20y = 125 15x - 18y = -27 (-) (+) (+) _________________ 38y = 152y = 152 / 38y = 4Put y = 4 in equation ( 1 )3x + 4y = 25

3x + 4y = 25 × 5 -------- ( 1 )5x - 6y = -9 × 3 -------- ( 2 )=> 15x + 20y = 125 15x - 18y = -27 (-) (+) (+) _________________ 38y = 152y = 152 / 38y = 4Put y = 4 in equation ( 1 )3x + 4y = 253x + 4 × 4 = 25

3x + 4y = 25 × 5 -------- ( 1 )5x - 6y = -9 × 3 -------- ( 2 )=> 15x + 20y = 125 15x - 18y = -27 (-) (+) (+) _________________ 38y = 152y = 152 / 38y = 4Put y = 4 in equation ( 1 )3x + 4y = 253x + 4 × 4 = 253x = 25 - 16

3x + 4y = 25 × 5 -------- ( 1 )5x - 6y = -9 × 3 -------- ( 2 )=> 15x + 20y = 125 15x - 18y = -27 (-) (+) (+) _________________ 38y = 152y = 152 / 38y = 4Put y = 4 in equation ( 1 )3x + 4y = 253x + 4 × 4 = 253x = 25 - 163x = 9

3x + 4y = 25 × 5 -------- ( 1 )5x - 6y = -9 × 3 -------- ( 2 )=> 15x + 20y = 125 15x - 18y = -27 (-) (+) (+) _________________ 38y = 152y = 152 / 38y = 4Put y = 4 in equation ( 1 )3x + 4y = 253x + 4 × 4 = 253x = 25 - 163x = 9x = 9 / 3

3x + 4y = 25 × 5 -------- ( 1 )5x - 6y = -9 × 3 -------- ( 2 )=> 15x + 20y = 125 15x - 18y = -27 (-) (+) (+) _________________ 38y = 152y = 152 / 38y = 4Put y = 4 in equation ( 1 )3x + 4y = 253x + 4 × 4 = 253x = 25 - 163x = 9x = 9 / 3x = 3

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