-7 +2x = x + 8
2x - x = 7 + 8
x = 15
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no x would be 0.5 because two times 0.5 is 1 ( 2x ) and then add 7 equals 8 ( plus seven equals 8 )
X=7
(3, 2)
f(x) = 2x + 8 f(x) = -7 → 2x + 8 = -7 → 2x = -15 → x = -7½ = -7.5
2x + 1 = 82x = 7x = 7/2 = 3.5whew !