equation - x + x + 10 - 8 = 140

answer - 2x + 10 = 140 + 8

2x + 10 = 148

2x = 148 - 10

2x = 138

x = 138/2

x = 69

Checking answer

LHS = x + x + 10 - 8 = 69 + 69 10 -8 = 140

RHS = 140

LHS = RHS

-------> The value of x is 69

answer - 2x + 10 = 140 + 8

2x + 10 = 148

2x = 148 - 10

2x = 138

x = 138/2

x = 69

Checking answer

LHS = x + x + 10 - 8 = 69 + 69 10 -8 = 140

RHS = 140

LHS = RHS

-------> The value of x is 69

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