It is: x+4+2x-7 = 3x-3 simplified
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2 x 7 + 5 = 19
5+3=8x4=32-8=24+2=26x7=182 If order of operation is followed then the mutiplication has to be done first. Then you add/subract the rest of the numbers from left to right. 5 + 3 x 4 - 8 + 2 x 7 = X (3x4) (2x7) 5 + 12 - 8 + 14 = X X=23
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(x + 4) + (x + 5) = 2x + 9
x/(x + 4) = 4/(x + 4) + 2 (x - 4)/(x + 4) = 2 x - 4 = 2x + 8 -x = 12 x = -12