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Simplifying 15 + -2(3 + -2x) = 21 15 + (3 * -2 + -2x * -2) = 21 15 + (-6 + 4x) = 21 Combine like terms: 15 + -6 = 9 9 + 4x = 21 Solving 9 + 4x = 21 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + 4x = 21 + -9 Combine like terms: 9 + -9 = 0 0 + 4x = 21 + -9 4x = 21 + -9 Combine like terms: 21 + -9 = 12 4x = 12 Divide each side by '4'. x = 3 Simplifying x = 3
| 15-2(3-2x)=12 | | (v+9)(v-9)=0 | | a/4=24/30 | | p=3x+260 | | -7v-16=-9(v+2) | | F(x)=-5x^2+1 | | w/35=4/7 | | 2x^2(2f(3a))=144 | | 14+5(2x+1)=39 | | -14=s+12over-6 | | -0.4b+(6b-5.9a)= | | 3x+269=y | | -4(v+6)=-6v-18 | | 2x^22f(3a)=144 | | (x/3)squared | | (x/3)^2 | | (t/3)^2 | | 3+2(2x-1)=25 | | (x+6/7)+(x-2/2)=8/7 | | -4(5n+5)=4 | | e-4=29.9 | | 4(x+2)+12=28 | | 4e-2=89 | | 4e-2=35.9 | | 4e-2=36.9 | | 4e-2=38.1 | | 4e-2=38.9 | | 4e-2=33.9 | | 4e-2=29.8 | | 3lm(4x)=12forx | | (6k/2)2 | | 42-2=28.4 |