That is not solvable. It's like saying 7x2=2x2
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7x = 18 - 2x 7x + 2x = 18 9x = 18 x = 2
It is 9x
2x+7x-10=4x+3-2x 9x-10=2x+3 7x=13 x=13/7ans
It is an equation and the value of x is 1
10x - 3 - 2x = 4 7x - 3 = 4 7x = 7 x = 1