2x + 6 = 9 (subtract 6 from both sides) 2x = 3 (divide both sides by two)
x = 1.5
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2x + 3y = 9x = 3, y = 1 therefore 6 + 3 = 9
4x+9=2x-6 2x=-15 x=-7.5 x equals -7.5.
X = 9
2x + 3 = 92x = 9 - 32x = 6x = 6/2x = 3
-6 + 4x + (9-2x) = -6 + 4x + 9 - 2x = [ 3 + 2x ]