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Simplifying (7x + -30) + (3x + 10) = 140 Reorder the terms: (-30 + 7x) + (3x + 10) = 140 Remove parenthesis around (-30 + 7x) -30 + 7x + (3x + 10) = 140 Reorder the terms: -30 + 7x + (10 + 3x) = 140 Remove parenthesis around (10 + 3x) -30 + 7x + 10 + 3x = 140 Reorder the terms: -30 + 10 + 7x + 3x = 140 Combine like terms: -30 + 10 = -20 -20 + 7x + 3x = 140 Combine like terms: 7x + 3x = 10x -20 + 10x = 140 Solving -20 + 10x = 140 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '20' to each side of the equation. -20 + 20 + 10x = 140 + 20 Combine like terms: -20 + 20 = 0 0 + 10x = 140 + 20 10x = 140 + 20 Combine like terms: 140 + 20 = 160 10x = 160 Divide each side by '10'. x = 16 Simplifying x = 16
| 138=48 | | 3-10x=5-6x-250+4x | | 8z+8-3z=80-3z | | 2w^2-8w-120=0 | | [7-3x]=13 | | 7(a-8)+16=2(a-5) | | 9x+4=13x+16 | | 5x+5=110 | | 5/6d=7/12 | | 2(4X+2)(X-1)= | | (-3x^2+10)-(x^3+9x^2+2)= | | 1-7v+10v+8= | | 1x+71=-10-2x | | 5p-25=-80 | | 12(v+3)-3v=3(3v+4)-17 | | 1/1w | | 19t+-26=-159 | | 16y=5-11x | | k/5-6=-9 | | 4x+3-2(x+3)=2(x+3)-9 | | (5x-9)-(x-1)= | | h-6=5(2h+3) | | A(2)+48(2)=55(2) | | 10/156 | | 5a-7=30-3a+17 | | 15+m=4 | | [2-x]=6 | | 6(n-3)=6 | | 2r-42=8 | | 5n+10d+25q=220 | | 2x+3y=94 | | 44+z=-10 |