2x + 6 = -9 + 5x
Subtract 2x from both sides: 6 = -9 + 3x
Add 9 to both sides: 15 = 3x
Divide both sides by 3: 5 = x
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DIE
if: 2x + 6 = -6 then: 2x = -12 x = -6 if: 5x + 7y = 1 then: 5(-6) + 7y = 1 7y = 31 y = 31/7
x=6Solution:x + 2x + 14 = 5x + 214 - 2 = 5x - 3x12 = 2xx = 12/2 = 6
5x - 2x = -5 - 1 ie 3x = -6 so x = -2
3x+5=4-2x+6 5x=4-1 5x=3 x=3/5