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Simplifying 3(x + 7) = 2(4x + 28) Reorder the terms: 3(7 + x) = 2(4x + 28) (7 * 3 + x * 3) = 2(4x + 28) (21 + 3x) = 2(4x + 28) Reorder the terms: 21 + 3x = 2(28 + 4x) 21 + 3x = (28 * 2 + 4x * 2) 21 + 3x = (56 + 8x) Solving 21 + 3x = 56 + 8x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8x' to each side of the equation. 21 + 3x + -8x = 56 + 8x + -8x Combine like terms: 3x + -8x = -5x 21 + -5x = 56 + 8x + -8x Combine like terms: 8x + -8x = 0 21 + -5x = 56 + 0 21 + -5x = 56 Add '-21' to each side of the equation. 21 + -21 + -5x = 56 + -21 Combine like terms: 21 + -21 = 0 0 + -5x = 56 + -21 -5x = 56 + -21 Combine like terms: 56 + -21 = 35 -5x = 35 Divide each side by '-5'. x = -7 Simplifying x = -7

| 1/2x=14.2/1 | | 91-x+x+7=180 | | 12x-216=4+x | | 38=4w+-26 | | 16n-24= | | y=-12/ | | -8x^2+2x-1=0 | | -30/-4 | | V=5y^3+7y^2+2y | | 4x+5-3x=19 | | 14+4.5x=12+5.75x | | (-4/3)?^3 | | 4x-12(2x+8)=12 | | 24-x=4x-36 | | 44/-12 | | (x-28)+x=90 | | 8x-43=2x-5 | | 10+5y=5 | | -204=-3(4+8n) | | y-2/5=4/3 | | 3x-x^2=15 | | B^11/12 | | 90=3x-14+2x+9 | | 2x=10+8x-43 | | z=8(x-4) | | -4y+2x=16 | | B11/12 | | 25=1/4r-3 | | 2(7+8x)=-82 | | 3x-6x+x-9x= | | (1/4x^4*x^12)^-1/2 | | -7+3b=-2b+13 | | 6x^2-60=18x | | 6x+17+4x-3x+20= | | 2x-11=7x+2 | | (2*x)=3 | | 12n+12n=1996 | | 0.9=(x-6)/(0.5x) | | 5*(2x-3)-(3x-7)+6x=13x-20 | | (37b-7)-9(4b+4)=-4 | | 4x+18+4x=180 | | 8y^3=20 | | -105=-25-8x | | 2w+40w=6000 | | 3=x/3,3 | | x^2+2xy+y^2-2x-2y=0 | | -5w+4-4w+6=-17 | | 2x+1=4+9 | | ?(250x^3)/(2n) | | 5v-2=33 | | 1x1/5 | | 2.5-m=12 | | 7k=4-7 | | (1/4x^4•x^12)^-1/2 | | 2+7LNx=30 | | 12n+5=60 | | k/1,5=3 | | (N^2-n29)/(n-6) | | 81=t | | 3n+12=48 | | j/3=4,5 | | j/3=4/5 | | (2x-1)*(4x-1)=14 | | 120n+12=1998 | | -160=-9x-61 |

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