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-3x-18 -12x-48 = -8 +2x +9x+ 72
-15x-66 = 64 +11x
-26x = 130
x = -130/26
x= -65/13
4x+5-(3x+6)=2(2+x)-4
4x +5 -3x -6 = 4 +2x -4
x-1=2x
x= -1
4-5(3-x) = -x -(3-2x)
4-15+5x = -x -3 +2x
-11+5x=x-3
4x = 8
x=2