Solution:
2x + 6 = 2
2x = -4
x = -2
Check:
LHS = 2*(-2) + 6 = -4 + 6 = 2 = RHS
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2x+a=p 2x=p-a x=.5p-.5a
Solve for x. 3x + 3 = x + 7 2x + 3 = 7 2x = 4 x = 2 Check it. 6 + 3 = 2 + 7 It checks.
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2x + 2x + 146 + 26 = 172 4x + 172 = 172 4x = 0 x = 0
2x+3 = 7 2x = 7-3 2x = 4 x = 2