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Simplifying 0.3x + -0.2(20 + x) = 0.2(20) 0.3x + (20 * -0.2 + x * -0.2) = 0.2(20) 0.3x + (-4 + -0.2x) = 0.2(20) Reorder the terms: -4 + 0.3x + -0.2x = 0.2(20) Combine like terms: 0.3x + -0.2x = 0.1x -4 + 0.1x = 0.2(20) Multiply 0.2 * 20 -4 + 0.1x = 4 Solving -4 + 0.1x = 4 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + 0.1x = 4 + 4 Combine like terms: -4 + 4 = 0 0 + 0.1x = 4 + 4 0.1x = 4 + 4 Combine like terms: 4 + 4 = 8 0.1x = 8 Divide each side by '0.1'. x = 80 Simplifying x = 80
| 5x+2(x-3)=3(x+1)-6 | | H(60)=16t-t^2 | | 5x+4=6-7x | | 1-x^63=.5 | | 7-8y=72 | | 0.05(80)+0.7x=0.3(80+x) | | 7x-8=3x+4x | | (a-20)*7=21 | | w=15/2-4 | | 2(10)+r=24 | | 2(2v-7)=17 | | 49+2y=9y | | 7(4s+8)=280 | | 7(45+8)=280 | | ln[(x-5)/(x^2-25)^5]^(4/5) | | r^2(r-2m)=-2ml | | 24+10=2r | | -0.04y+0.08(800-y)=0.38y | | r(r-2m)=-2ml | | 5x+12-4x=8+4x-5 | | 8k+9+5k-3= | | 19/15x=76 | | 3/4x-5=17 | | 14+m=37 | | 20=-5(3x-10) | | 4(x+4)-1=15 | | X+2(-12x)=13 | | 3(2l+7)=87 | | 0.09x=0.71 | | 5x+1+x+5=180 | | 3(2l+7)=280 | | F(x)=16t-t^2 |