2x + 7 = 10
2x + 7 - 7 = 10 - 7
2x = 3
2x/2 = 3/2
x = 1 1/2 OR 1.5
The answer is 1 1/2, also written as 1.5
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(2x - 10) + 7 = 52x - 3 = 52x = 8x = 4
If x=4 then 2x+7 =
X=7
x=-1 becaus: 12x+3=2x-7 10x+3=-7 (-2x) 10x=-10 (-3) x=-1 (divided by 10)
-7 +2x = x + 8 2x - x = 7 + 8 x = 15