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x=180-90-30
We move all terms to the left:
x-(180-90-30)=0
We add all the numbers together, and all the variables
x-60=0
We move all terms containing x to the left, all other terms to the right
x=60
| 125+140+x=180 | | x=180-90-39 | | (2x+7)/2=5x−1 | | 55+100+x=180 | | 2=10k-39 | | x=180-113-42 | | n/8+16=20 | | 2(-2-2x=4 | | x=180-77-40 | | x+105+45=180 | | 12.73-0.06x=13.48-0.06x | | x=180-107-25 | | 2(-10+5x)=20 | | 12.73-0.06x=13.48-00.6x | | -10-3w=9+w+9 | | 9(2x-1)+4x=4(3x-1)-9 | | 3x+40°+5x-20°=180° | | -5(-3+6x)=165 | | x=180-76-36 | | x-76-32=180 | | 6(-1x-8)=24 | | 10+6.6n=7+4n | | -4(3+6x)=-276 | | x+76+32=180 | | 5(-5x+1)=-45 | | 3g=-8 | | 9+5y=99 | | 4(-4+5x)=124 | | 8y-8+66+90=180 | | 8+5y=99 | | -1,5x-3=-0,6x+6 | | -2b+3+9-5b=-23 |