Math, asked by tulasigujjarllapudi, 10 months ago

3x+9=7x+2 find LHS and RHS​

Answers

Answered by devilahari38
2

Step-by-step explanation:

3x+9=7x+2

3×-7x=9-2

-4x=7

×=7/4

Answered by SanrzDk
0

Answer:

3x + 9 = 7x + 2 \\ 3x - 7x = 2 - 9 \\  - 4x =  - 7 \\ x =  \frac{7}{4}  \\  \\ now \:  \:  \: rhs = 7x + 2 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   = 7 \times  \frac{7}{4}  + 2 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  =  \frac{49}{4}  + 2 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \:  \:    =  \frac{49 + 8}{4}  =  \frac{57}{4}  \\  \\  \:  \:  \:  \:  \: \:  \:  \:  \:  \:   \: lhs \:  = 3x + 9 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \:  \:    = 3 \times  \frac{7}{4}  + 9 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   =  \frac{21}{4}  + 9 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  =  \frac{21 + 36}{4}  =  \frac{57}{4}  = rhs

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