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Simplifying 3(-1x + 7) = -7(x + 3) Reorder the terms: 3(7 + -1x) = -7(x + 3) (7 * 3 + -1x * 3) = -7(x + 3) (21 + -3x) = -7(x + 3) Reorder the terms: 21 + -3x = -7(3 + x) 21 + -3x = (3 * -7 + x * -7) 21 + -3x = (-21 + -7x) Solving 21 + -3x = -21 + -7x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7x' to each side of the equation. 21 + -3x + 7x = -21 + -7x + 7x Combine like terms: -3x + 7x = 4x 21 + 4x = -21 + -7x + 7x Combine like terms: -7x + 7x = 0 21 + 4x = -21 + 0 21 + 4x = -21 Add '-21' to each side of the equation. 21 + -21 + 4x = -21 + -21 Combine like terms: 21 + -21 = 0 0 + 4x = -21 + -21 4x = -21 + -21 Combine like terms: -21 + -21 = -42 4x = -42 Divide each side by '4'. x = -10.5 Simplifying x = -10.5
| 5.8-3a=14.8 | | x+2.9=1.1 | | 9x+2x-4x-5=9 | | 8x-[5x+3(2x-1)]= | | 3(6-2y)=y+2 | | 4a-3+2a+6= | | 5(2x-1)=2x+19 | | -5(c-8)=5 | | 8(n-2)-8(n+12)=-9n+2n | | 3a+2b-4c=36 | | -18-6g=6(1+3g) | | 13z+45-7z=-15 | | 13x+42=22 | | 3x+1*8= | | 10m+1-m=-80 | | 82+54+8x+4=180 | | -20+m=-32 | | 6s+21s-10=0 | | 2x+7x-3x-5=25 | | 6x+6+58+74=180 | | 45+59+6x+4=180 | | 3-5(2-m)=2(m+7) | | 6.1a+8.3=5.07a-0.04 | | 66+52+61x+1=180 | | 13x^2-10x+13=0 | | 35+115+5x=180 | | 5j^2-11j+2=0 | | 8+6x=9x-1 | | -19x=-361 | | -5a-b+c=4 | | b+16=3 | | a=2(a-10) |