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Simplifying 2(5 + 3x) = -7x + -42 (5 * 2 + 3x * 2) = -7x + -42 (10 + 6x) = -7x + -42 Reorder the terms: 10 + 6x = -42 + -7x Solving 10 + 6x = -42 + -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. 10 + 6x + 7x = -42 + -7x + 7x Combine like terms: 6x + 7x = 13x 10 + 13x = -42 + -7x + 7x Combine like terms: -7x + 7x = 0 10 + 13x = -42 + 0 10 + 13x = -42 Add '-10' to each side of the equation. 10 + -10 + 13x = -42 + -10 Combine like terms: 10 + -10 = 0 0 + 13x = -42 + -10 13x = -42 + -10 Combine like terms: -42 + -10 = -52 13x = -52 Divide each side by '13'. x = -4 Simplifying x = -4
| 3/4x^2-12 | | 8n-6=6n+8 | | 9x+2-11+3x=-x-13x-4-5 | | -131=-5(3x-82) | | 2x-3=6-7x | | .457=(0.1x)/(0.002-0.1x) | | 7-3(-3)-3(7)= | | b^2-6b-33=-6 | | y+19+18=64 | | -0.12=8.4 | | 2x=11+5-2x | | 2x^2=-2+5z | | 2x^2-12x+36=18 | | 5x-8+7=22 | | u^2-7u+9=0 | | x^4+17x^2=-72 | | 9x^3-3x-1=0 | | E^2x-3=18 | | 3w+8=-20+10w | | -98=-5(2m+2)-2m | | -2+3=x-2-4x | | -18*7= | | -8x=-32+64 | | 4x*-7x^2= | | 14.91=x/(.3-x)(.4-x) | | -(x-1)+-(2x-10)=0 | | 11/x=55/20 | | -5x^2+46x+40=0 | | 0.2x+x=10 | | -b=-20 | | 5x^2+46x+40=0 | | h-48+17=42 |