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Simplifying (7x + 15) + -2 = (2x + 70) + -2 Reorder the terms: (15 + 7x) + -2 = (2x + 70) + -2 Remove parenthesis around (15 + 7x) 15 + 7x + -2 = (2x + 70) + -2 Reorder the terms: 15 + -2 + 7x = (2x + 70) + -2 Combine like terms: 15 + -2 = 13 13 + 7x = (2x + 70) + -2 Reorder the terms: 13 + 7x = (70 + 2x) + -2 Remove parenthesis around (70 + 2x) 13 + 7x = 70 + 2x + -2 Reorder the terms: 13 + 7x = 70 + -2 + 2x Combine like terms: 70 + -2 = 68 13 + 7x = 68 + 2x Solving 13 + 7x = 68 + 2x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2x' to each side of the equation. 13 + 7x + -2x = 68 + 2x + -2x Combine like terms: 7x + -2x = 5x 13 + 5x = 68 + 2x + -2x Combine like terms: 2x + -2x = 0 13 + 5x = 68 + 0 13 + 5x = 68 Add '-13' to each side of the equation. 13 + -13 + 5x = 68 + -13 Combine like terms: 13 + -13 = 0 0 + 5x = 68 + -13 5x = 68 + -13 Combine like terms: 68 + -13 = 55 5x = 55 Divide each side by '5'. x = 11 Simplifying x = 11
| 10x+30+2x+18=180 | | 10=2r | | x^2+y^2-2xy+2y+1=0 | | 4sin^2(3x)=3 | | -15+10=-5y | | 4x+2=2x+4x+12 | | (8x+44)-4=(4x+76)-4 | | 3x+15+7x+5=180 | | 12x^2-84x=0 | | (2x^2+3x-8)+(5x^2-9x+2)= | | 7y-4=4y+14 | | -.25x+8=12+-7 | | 5x+10+95=180 | | 2x-16+20=180 | | 3x=23-23 | | 8g-3=35 | | -2n+4n-7=9 | | 2r-6=29 | | 5(u+4)=9u+8 | | -(-4-4)= | | -7=m+4 | | 564.75=4x+4(.65x) | | 2w+39=-7(w+6) | | 9-12m+5m=14+2 | | 10x-(5x+1)=5x-1 | | 90+64=x+8 | | 2(u-5)-7u=-15 | | 14=-5y+3(y+6) | | 3(y-5)-8=-7(4y+5)-9y | | 5p+6q=44 | | 0.08616x^2+3.1622x-88.27=0 | | D+64=72 |