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-2x+9x-3x=0
We add all the numbers together, and all the variables
4x=0
x=0/4
x=0
| X+4x=39 | | x=√25 | | 1.8d+2.7=1.4d-1.5 | | 90+22.5t=4t | | 1.8d+2.7-2.7=1.4d-1.5+-2.7 | | 24t=23.4(t+0.3) | | t^2−2t=0 | | (7/8)x=5/7 | | t2−2t=0 | | 7/8x=5/7 | | t2−2t=0t≠0 | | 14-3x=447 | | 2-0.2y=1.5 | | 7/8t=5/7 | | 3x+4(×+1)=95 | | 3+2h=16 | | 3n+6=39 | | 2(x^2+8x+12)=0 | | 3x/4-x/4=7x/8+3/4 | | 7+4{x+7}=23 | | 2x+4(×+1)=82 | | 2(10+6x)=-64 | | 6(-1x+10)=132 | | 2(-2x+10)=-24 | | -6(2x+7)=-150 | | 7(1x-3)=0 | | 4(7+2x)=100 | | 2(6x-9)=6 | | 6(-4x+4)=-24 | | 2(7x+9)=-80 | | -6(-5+7x)=324 | | 2/5(r-)=3/20(r-5) |