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Simplifying 7 + -2(x + -4) = 21 + -5x Reorder the terms: 7 + -2(-4 + x) = 21 + -5x 7 + (-4 * -2 + x * -2) = 21 + -5x 7 + (8 + -2x) = 21 + -5x Combine like terms: 7 + 8 = 15 15 + -2x = 21 + -5x Solving 15 + -2x = 21 + -5x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5x' to each side of the equation. 15 + -2x + 5x = 21 + -5x + 5x Combine like terms: -2x + 5x = 3x 15 + 3x = 21 + -5x + 5x Combine like terms: -5x + 5x = 0 15 + 3x = 21 + 0 15 + 3x = 21 Add '-15' to each side of the equation. 15 + -15 + 3x = 21 + -15 Combine like terms: 15 + -15 = 0 0 + 3x = 21 + -15 3x = 21 + -15 Combine like terms: 21 + -15 = 6 3x = 6 Divide each side by '3'. x = 2 Simplifying x = 2
| 9-2(3x-4)= | | 8-3(2x+5)=-4x-(x+4) | | x+x=185 | | 1.25*((0.3141*x)+x)=7586.81 | | -8x+4(1+5n)=-6-14 | | (4x+2)(3x-3)= | | x/-45/6 | | 8=(5)(12) | | 5x+10-2x=x-4 | | 0.25*((0.3141*x)+x)=7586.81 | | z(3-2i)+(5-5i)=(1-i)+z | | F(-3)=3x+12 | | 1.75x+2.25y=20.50 | | m-5=35 | | 7x+52=5x+44 | | (0.3141*x)+x=7586.81 | | 11m+4n-5m+9n= | | 18x^2+12x= | | 22-3x+7x=4x+10 | | 40X+11y=5455.13 | | 1.75+2.25=20.50 | | 3z^2-1z-7=0 | | Sqrt(u-6)=5 | | 7/2=3v-1/5-2v | | x-4,5/12=1/3 | | -2(-2x+3)=6 | | 9y-27y+14= | | X*2-9=4x-20+16 | | X+1-7=72 | | 90-3x+15= | | -3/4d=-7/8 | | 2x+4z=3+7y |