3x + 4 = -11
Subtract 4 from both sides: 3x = -15
Divide both sides by 3: x = -5
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3x+4=-11 3x=-15 x=-5
5x+3 = 3x+11 5x-3x = 11-3 2x = 8 x = 4
x=4/3
3x-1=11 solves to x=4. Plug in 4 to get 42+4. The answer is 20.
3x-1 = 11 3x = 11+1 3x = 12 x = 4 Therefore: x2+2 = 18