Question

Solve the following linear equation and verify LHS=RHS or not
a) x-5=7
b) 7+x=-2​

Answer 1

a) x -5 = 7

x = 7 +5

x = 12

x -5 = 7

12 -5 = 7

7 = 7

Hence, LHS = RHS.

b) 7 +x = -2

x = -2 -7

x = -9

7 +x = -2

7 +(-9) = -2

7 -9 = -2

-2 = -2

Hence, LHS = RHS

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Answer 2

Step-by-step explanation:

$a) \: x - 5 = 7 \\ x = 7 + 5 \\ x = 12 \\ \\ b) \: 7 + x = - 2 \\ x = - 2 - 7 \\ x = - 9$

Verification:

$a) \: x = 12 \\ 12 - 5 = 7 \\ 7 = 7 \\ lhs = rhs \\ \\ b) \: x = - 9 \\ 7 + ( - 9) = - 2 \\ 7 - 9 = - 2 \\ - 2 = - 2 \\ lhs = rhs$

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