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Simplifying 7 = -2 + b Solving 7 = -2 + b Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-1b' to each side of the equation. 7 + -1b = -2 + b + -1b Combine like terms: b + -1b = 0 7 + -1b = -2 + 0 7 + -1b = -2 Add '-7' to each side of the equation. 7 + -7 + -1b = -2 + -7 Combine like terms: 7 + -7 = 0 0 + -1b = -2 + -7 -1b = -2 + -7 Combine like terms: -2 + -7 = -9 -1b = -9 Divide each side by '-1'. b = 9 Simplifying b = 9
| 5=2+b | | -7=x+-7 | | -7=0+b | | -7=o+b | | 51=x+80 | | 51=-29+b | | -5=3+b | | b-9=-3 | | -3=x+3 | | -3=-6+b | | 5=8+b | | 9(v+4)-3=2(3v+3)-8 | | -5(v+2)+3v+7=6v+11 | | 3x(x-3)=-8 | | 4u-20= | | 6x-5=7-9x | | -1.6r+5=-7.8 | | -1.6r+5=7.8 | | 13=8-6 | | 45x+2=92 | | 5y+10(8-y)=65 | | 6x-(x-3)=18 | | 9+6x=x+34 | | 2x^2-4-20= | | x^2-36=(x+6)(x-6) | | 8x-20+16x-30=180 | | x-80+2x-90=180 | | 2x-90+x-80=180 | | 4(2x+1)=4x+1 | | (3x-18)+105=180 | | 2x^2+14x+2=0 | | D=175-70t |