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Simplifying 12 + (x + 3) + 7(6x + -3) = 13(4x + -3) Reorder the terms: 12 + (3 + x) + 7(6x + -3) = 13(4x + -3) Remove parenthesis around (3 + x) 12 + 3 + x + 7(6x + -3) = 13(4x + -3) Reorder the terms: 12 + 3 + x + 7(-3 + 6x) = 13(4x + -3) 12 + 3 + x + (-3 * 7 + 6x * 7) = 13(4x + -3) 12 + 3 + x + (-21 + 42x) = 13(4x + -3) Reorder the terms: 12 + 3 + -21 + x + 42x = 13(4x + -3) Combine like terms: 12 + 3 = 15 15 + -21 + x + 42x = 13(4x + -3) Combine like terms: 15 + -21 = -6 -6 + x + 42x = 13(4x + -3) Combine like terms: x + 42x = 43x -6 + 43x = 13(4x + -3) Reorder the terms: -6 + 43x = 13(-3 + 4x) -6 + 43x = (-3 * 13 + 4x * 13) -6 + 43x = (-39 + 52x) Solving -6 + 43x = -39 + 52x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-52x' to each side of the equation. -6 + 43x + -52x = -39 + 52x + -52x Combine like terms: 43x + -52x = -9x -6 + -9x = -39 + 52x + -52x Combine like terms: 52x + -52x = 0 -6 + -9x = -39 + 0 -6 + -9x = -39 Add '6' to each side of the equation. -6 + 6 + -9x = -39 + 6 Combine like terms: -6 + 6 = 0 0 + -9x = -39 + 6 -9x = -39 + 6 Combine like terms: -39 + 6 = -33 -9x = -33 Divide each side by '-9'. x = 3.666666667 Simplifying x = 3.666666667
| 11x+20x-8+2=-3x+2-8 | | -4+5y=-29 | | 8+12x-3=6x+65-4x | | 6(5-2v)=-v+19 | | 8x+5=8x-24 | | 31-19=3(x-6) | | -4x+6y=8 | | 47.6-z=31.3 | | X+21=9x+53 | | n(n+2)=120 | | -[4z-(7z+1)]=1+(2z+3) | | 0.02(x-1)=-1.2 | | 7(1-5m)=-2m+7 | | 2w+14=52 | | 42=5w-8 | | 13=(4x-10)+(3x-8) | | 15x+7+15x-7=180 | | (3+6*4-2)-10=5 | | h(t)=-4.9t(t-8) | | 6-y=29 | | =-2x+15 | | 28x-21y+7=0 | | f(x)=x^3*e^5-2x^5 | | x^5-x-4x^3=0 | | 8(k+9)-(5-8k)=15k | | -[2z-(11z+2)]=2+(8z+6) | | 3+6*4-2-10=5 | | x-4y-7=0 | | [2z-(11z+2)]=2+(6z+6) | | 2=-4+s | | elnx^2=4 | | [2z-(11+2)]=2+(6z+6) |