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Simplifying 7(x + 4) = 2(x + 4) Reorder the terms: 7(4 + x) = 2(x + 4) (4 * 7 + x * 7) = 2(x + 4) (28 + 7x) = 2(x + 4) Reorder the terms: 28 + 7x = 2(4 + x) 28 + 7x = (4 * 2 + x * 2) 28 + 7x = (8 + 2x) Solving 28 + 7x = 8 + 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. 28 + 7x + -2x = 8 + 2x + -2x Combine like terms: 7x + -2x = 5x 28 + 5x = 8 + 2x + -2x Combine like terms: 2x + -2x = 0 28 + 5x = 8 + 0 28 + 5x = 8 Add '-28' to each side of the equation. 28 + -28 + 5x = 8 + -28 Combine like terms: 28 + -28 = 0 0 + 5x = 8 + -28 5x = 8 + -28 Combine like terms: 8 + -28 = -20 5x = -20 Divide each side by '5'. x = -4 Simplifying x = -4
| -x^2-3x-25=0 | | 10-n=62 | | 3x^4+12y^4=0 | | -2x+1=31 | | 28[2*(10-4)-5]= | | x/2.3=9.2 | | -1.17x=5.85 | | (15-X)/5=(3-X)/10 | | -3(-6-3x)+1=7x | | [5b-8]/5=2 | | 7.8+2.5x=16.3-7.5x | | 0.006*x=6 | | h(x)=x^2+20x+90 | | -5(1-x)+x=-(7-4x)+7 | | 4=p+p | | -8.6x=43.0 | | 58/96 | | [3a-9]+10=28 | | N+8=3*9 | | [-8x]=16 | | 25=5x+50 | | 6x-3(-6x+8)=120 | | 5(x-4)-2(x+7)=6(2x+17) | | 7y+-21+-4y+-8=3y+-21 | | =(1+6i)(5-2i) | | Ix-2I=1 | | 2y+5=4y+5 | | 3x-4(2x+18)=-22 | | 5x+2y+3x-2y-3= | | 5.25x-18.50=.65x | | x^5=x^3+1 | | (2y^7/9)^-3 |