Question

Solve the following simultaneous equations 3a+5b= 26; a+ 5b =2

Answer 1

Step-by-step explanation:

3a+5b =26

a + 5b = 2

4a+10b = 28

÷ by 2 on both sides

2a + 5b= 14

Answer 2

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3a + 5b = 26 ; a + 5b = 22

=> 3a + 5b = 26 ................... equation( 1 ) .

=> a + 5b = 22....................... equation( 2 ).

subtracting equation (2) from equation (1) .

3a + 5b = 26.......(1)

–

a + 5b = 22........(2)

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2a = 4

4

=> a = _____

2

=> a = 2 .

put a = 2 in equation ( 1 ),

3(2) + 5b = 26 .

6 + 5b = 26 .

5b = 26 – 6.

5b = 20

20

b = ______

5

: . b = 4

Answer = ( a, b ) = ( 2, 4 ) is the solution .

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HOPE IT WILL HELP YOU .

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