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Simplifying x + (x + 2) + (x + 2) + (x + 2) = 84 Reorder the terms: x + (2 + x) + (x + 2) + (x + 2) = 84 Remove parenthesis around (2 + x) x + 2 + x + (x + 2) + (x + 2) = 84 Reorder the terms: x + 2 + x + (2 + x) + (x + 2) = 84 Remove parenthesis around (2 + x) x + 2 + x + 2 + x + (x + 2) = 84 Reorder the terms: x + 2 + x + 2 + x + (2 + x) = 84 Remove parenthesis around (2 + x) x + 2 + x + 2 + x + 2 + x = 84 Reorder the terms: 2 + 2 + 2 + x + x + x + x = 84 Combine like terms: 2 + 2 = 4 4 + 2 + x + x + x + x = 84 Combine like terms: 4 + 2 = 6 6 + x + x + x + x = 84 Combine like terms: x + x = 2x 6 + 2x + x + x = 84 Combine like terms: 2x + x = 3x 6 + 3x + x = 84 Combine like terms: 3x + x = 4x 6 + 4x = 84 Solving 6 + 4x = 84 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + 4x = 84 + -6 Combine like terms: 6 + -6 = 0 0 + 4x = 84 + -6 4x = 84 + -6 Combine like terms: 84 + -6 = 78 4x = 78 Divide each side by '4'. x = 19.5 Simplifying x = 19.5
| 18=2(w+7)-4w | | 3z+9=18 | | -6x+2(x-3)=-26 | | 20x-110x=110x | | 39=4v+11 | | 2x+70=3x-10 | | 4(w+4)-6w=28 | | (2n+4)(n-2)= | | 3(u-7)+6u=15 | | (2x+4)=90 | | 2x+3-10+70=180 | | (2x+40)=90 | | (5n-5)+(3n-2)= | | -3x=-36+7y | | x(5x-1)-15(x-1)=12 | | 3x(x-1)-7(x-2)=7 | | -41=6x+7-18 | | 3x(x-3)-1(x-4)=1 | | 2(2)-4(-1)=8 | | 90-17x=3x^2 | | 0.5X^2-4X+3.5=0 | | 6x-2y=-40 | | -10x-2y=56 | | 4x+4y=-72 | | (2x+9)(x-3)=-19(x-7) | | 8x-8y=16 | | 4x^2-20x+14x-70=11x-88 | | -18=2y-18 | | (x+4)(x+4)+(-30)=x^2+5x+4 | | 0=2y-18 | | 6(2x-6)-2(x+4)-16x= | | 18=2y-18 |