Her work is correct, but there is one solution rather than no solution.
Linear equations are equations that has a degree of 1. Given the equation below;
3(2x + 1 ) = 2(x + 1) + 1
Expand
3(2x) + 3(1) = 2(x) + 2(1) + 1
Simplify
6x + 3 =2x + 2 + 2
6x + 3 = 2x + 3
Collect the like term
6x - 2x = 3 - 3
4x = 0
x =0
Hence we can conclude that Her work is correct, but there is one solution rather than no solution.
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