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Simplifying 9 = -12 + -3x + -4x Combine like terms: -3x + -4x = -7x 9 = -12 + -7x Solving 9 = -12 + -7x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7x' to each side of the equation. 9 + 7x = -12 + -7x + 7x Combine like terms: -7x + 7x = 0 9 + 7x = -12 + 0 9 + 7x = -12 Add '-9' to each side of the equation. 9 + -9 + 7x = -12 + -9 Combine like terms: 9 + -9 = 0 0 + 7x = -12 + -9 7x = -12 + -9 Combine like terms: -12 + -9 = -21 7x = -21 Divide each side by '7'. x = -3 Simplifying x = -3
| 4(3+x)=28 | | m^2=121 | | c=2*pi*r | | (a+4)(a-9)= | | -5(x+2)= | | 10y-1=7y+21 | | x+3n=7 | | -5x+5+9x=-31 | | 2+-12=48 | | -11(x+4-3x)= | | 4.25x+16.75+5.75= | | 16x+36=120 | | (x-4)(x^2-3x+2)= | | 3x+1=9(x+2) | | 34j+9j= | | 10t-7t+t=24 | | 41=8x+9 | | 12=3(4+2y) | | (3x^2)(-5x^5)(4x^5)= | | 8-x=40-16 | | 12=-3x-6 | | y^4-3y^2+1=0 | | 9s+6s-12s=24 | | 7x+29=74 | | 19.2(3.5-4.1x)=7.2(8.7x-49) | | (4x-3)(5x+5)= | | 2x-2=8*5 | | 13.6x-4.2=6.1(2.5x-4) | | -9(2x+4)=36 | | 6(1-7x-4y)= | | 2.4+11.8=7.2x-26.4 | | -28+0=-3 |