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Simplifying 3x + 12 = 21 + -2x Reorder the terms: 12 + 3x = 21 + -2x Solving 12 + 3x = 21 + -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. 12 + 3x + 2x = 21 + -2x + 2x Combine like terms: 3x + 2x = 5x 12 + 5x = 21 + -2x + 2x Combine like terms: -2x + 2x = 0 12 + 5x = 21 + 0 12 + 5x = 21 Add '-12' to each side of the equation. 12 + -12 + 5x = 21 + -12 Combine like terms: 12 + -12 = 0 0 + 5x = 21 + -12 5x = 21 + -12 Combine like terms: 21 + -12 = 9 5x = 9 Divide each side by '5'. x = 1.8 Simplifying x = 1.8
| (5x+1)=3(3-3x)+3 | | 24+5m-2m=-7+4m-54 | | 7-(-y-5)=3(y+3)-7(y+3) | | 18x+36y=12 | | 1.6k=3 | | 5x=15-9 | | 0.8(X+60)+0.4x=84 | | 6x-12(-1)=-18 | | 6x-12(6)=-18 | | 11x+20=11x-20 | | 6x-12(3)=-18 | | 6x-12(0)=-18 | | 375=14p+11 | | A=.5(11+9)7.5 | | 12y^2-13y+3=0 | | 32-8=8-32 | | 5x+8y=22 | | 9x+9y=-5 | | 2x-4(0)=-6 | | X-8=4x-7+5 | | 7x+8(3-5x)=-28-7x | | x+10+40+x=180 | | 42+x-42=42 | | 3(l+5)=60 | | 2x-4(1)=-6 | | (5y-4)(3y-1)=0 | | Yover-6+5=9 | | 3a-15=54 | | 10(x-7)=5x-25 | | 7x+5=48 | | 2x+25=5x+16 | | 7x+25=9x+9 |