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(X+4X=90
We move all terms to the left:
(X+4X-(90)=0
| x=180=2x-5 | | (5x/25)=-5 | | a+42=7a-6 | | 3.09x+24.72=6.18x+49.44 | | -33+2n=-7(-8n+5)+2 | | 6v-82=5v-63 | | x/2-9=-13 | | -18=v+(-10) | | 2y+48+y+15=180 | | 8w-48=5w | | 9x-40=11x | | -12a=15=15a | | 3(x+5)=39+2x | | 6-k=-14-5k | | 5.50x-7=62 | | 6(2x+3)=-133 | | 5b-28=b | | 6(2x+3)=-1 | | (2x+60+2x=180 | | (3x+7)=(6x-11) | | s-11=11-9 | | 2v-64=v-29 | | -5(x-6)=15-4x | | 12000=(24000)(r)(6) | | 14=4a-14 | | .0.5x+78.2=287 | | (2x-1)^2+1=26 | | -7(-1x+7)=-133 | | 9-c=9-8 | | 5.3+x=3.5x-2.7 | | 3.8m-1.2=25.02 | | 5(x+4)=7(3x-8) |