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Simplifying 9x + 15 = 20x + -40 Reorder the terms: 15 + 9x = 20x + -40 Reorder the terms: 15 + 9x = -40 + 20x Solving 15 + 9x = -40 + 20x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-20x' to each side of the equation. 15 + 9x + -20x = -40 + 20x + -20x Combine like terms: 9x + -20x = -11x 15 + -11x = -40 + 20x + -20x Combine like terms: 20x + -20x = 0 15 + -11x = -40 + 0 15 + -11x = -40 Add '-15' to each side of the equation. 15 + -15 + -11x = -40 + -15 Combine like terms: 15 + -15 = 0 0 + -11x = -40 + -15 -11x = -40 + -15 Combine like terms: -40 + -15 = -55 -11x = -55 Divide each side by '-11'. x = 5 Simplifying x = 5
| x^2+2.5x-7.5=0 | | 3x-3(-3)=21 | | x^2-5.5x-7.5=0 | | 25x+181.25=443.75 | | (x+40)x=6000 | | y^2-3y=o | | 7(5-2x)=-49 | | 3(x-6)=2(5-2)x | | 3y+14=2y-2 | | 10(22-y)+16y=274 | | 7+5w=28 | | 18x^2-34x-4=0 | | 3x-13=2x+7 | | y=5x-14 | | 7b=50 | | 10x-3=6x+8 | | 2m-5m=m+5 | | -12x^2+6x+18=0 | | 22xy=274 | | 3x=380-4y | | 22(x+y)=274 | | 8=4y-2+6y | | 3.2y-5=3+2(1.4y)+4 | | -12=-2k+6 | | -3(6x-1)=-141 | | -12=-2k+(-3k) | | =0.5m+15 | | 9m+2=-16 | | 4x+5-6=143.56 | | -8/8+1= | | y/8+1= | | 10(27.4-1.6y)+16y=274 |