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Simplifying 21 = 5x + 6 + -2x Reorder the terms: 21 = 6 + 5x + -2x Combine like terms: 5x + -2x = 3x 21 = 6 + 3x Solving 21 = 6 + 3x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3x' to each side of the equation. 21 + -3x = 6 + 3x + -3x Combine like terms: 3x + -3x = 0 21 + -3x = 6 + 0 21 + -3x = 6 Add '-21' to each side of the equation. 21 + -21 + -3x = 6 + -21 Combine like terms: 21 + -21 = 0 0 + -3x = 6 + -21 -3x = 6 + -21 Combine like terms: 6 + -21 = -15 -3x = -15 Divide each side by '-3'. x = 5 Simplifying x = 5
| 3(x+4)-x=2(x-6) | | -6x-2(-5+9)-3x= | | 2(2x+4)=1x+5 | | -5(4-3r)= | | 9(x+8)=x | | 10-15n=-n-18 | | -[2z-(12+1)]=1+(9z+4) | | x=2/9(y+z) | | x+41/4=567/8 | | 8(1+6b)=b | | -3+9(-4f+7)= | | 135=5x-5 | | 2x-3=-6x+4+22(x-3)(x+4) | | -6x(10x+-18)-3x= | | 4(x+3)=3x+6 | | 60*2/3 | | 1/5n-1/7=6/7 | | 3(5x+5)=2x+2 | | 4(-9-8b)= | | (Z)-7(z)=6(z)-7-(z) | | 0.8(a-9)=5.6a | | 2(66/84) | | 2(1+3m)=2m+2(1-2m) | | -3(x-9)=5x+3 | | 6(3+5s)-9s= | | 4/88= | | -3(-4+6y)+7(-y+5)=-8 | | 30s=1200 | | 9x-3(x+8)= | | 6+10x+3=y | | n^2+2n=99 | | -3(-4+6y)+7(-y+5)=68 |