Friday, 12 July 2013

Find the value of x in the equation and also check your answer

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

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