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Simplifying 5(4x + -4) + 2 = 7(3x + -3) Reorder the terms: 5(-4 + 4x) + 2 = 7(3x + -3) (-4 * 5 + 4x * 5) + 2 = 7(3x + -3) (-20 + 20x) + 2 = 7(3x + -3) Reorder the terms: -20 + 2 + 20x = 7(3x + -3) Combine like terms: -20 + 2 = -18 -18 + 20x = 7(3x + -3) Reorder the terms: -18 + 20x = 7(-3 + 3x) -18 + 20x = (-3 * 7 + 3x * 7) -18 + 20x = (-21 + 21x) Solving -18 + 20x = -21 + 21x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-21x' to each side of the equation. -18 + 20x + -21x = -21 + 21x + -21x Combine like terms: 20x + -21x = -1x -18 + -1x = -21 + 21x + -21x Combine like terms: 21x + -21x = 0 -18 + -1x = -21 + 0 -18 + -1x = -21 Add '18' to each side of the equation. -18 + 18 + -1x = -21 + 18 Combine like terms: -18 + 18 = 0 0 + -1x = -21 + 18 -1x = -21 + 18 Combine like terms: -21 + 18 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3
| 2/5/21/4 | | 2x+3(18x-4)=86-15x | | 5z^2+17z+6=0 | | 12x+2=142-2x | | x-4=1/2x-8-x/2 | | 6+5+5=650 | | 2x+x+x-8=180 | | x^2+39w=0 | | 5x-24=7x-32 | | h=16t^2+50 | | 2x^3=188 | | 0=z^2+12z-48 | | 7000+7y=3y-1000 | | 9/(x^2-9) | | 8(-5+7k)= | | 5(x-2)+3+(1/3x+1)=2(3x-4)+2 | | 20x=12+16 | | 3(2y-6)=-26-2y | | 9x-4=3x+12 | | 5a-6+2=8 | | 4x^2-1=-5x | | 3/5y+2/5=4 | | -3y+6x=18 | | (4k)(3h)= | | 5.00+0.80c=15 | | tn=5+6n | | 2x-y-2z=-1 | | (-x^2)+(2x)= | | 48y=36x-27 | | 13.50x-540=56 | | n/18=12.6 | | 12/n=36 |