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Simplifying 20 = 12 + 2x Solving 20 = 12 + 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. 20 + -2x = 12 + 2x + -2x Combine like terms: 2x + -2x = 0 20 + -2x = 12 + 0 20 + -2x = 12 Add '-20' to each side of the equation. 20 + -20 + -2x = 12 + -20 Combine like terms: 20 + -20 = 0 0 + -2x = 12 + -20 -2x = 12 + -20 Combine like terms: 12 + -20 = -8 -2x = -8 Divide each side by '-2'. x = 4 Simplifying x = 4
| f(-2)=4x^2-8x+3 | | -x+3x=10 | | 40x+8x=720 | | 3x-9x^2=10 | | h(x)=1/x | | Xsquared=4000 | | 20u^2-88u+32=0 | | 1=2x+4d-d+7i | | x^3-4x=21 | | log[4](36)+log[4](2x+3)=log[4](8x-14) | | 2log[4](6)+log[4](2x+3)=log[4](8x-14) | | (2x+1)(2x+3)=99 | | 0=2u-20 | | 5x/6=11/4=17/3 | | 6x^2-12x-x=0 | | 6=3n/5 | | 9=3(v+2) | | (6-i)-(9+7i)= | | 34=2w+10 | | f(15)=2.479g | | f(10)=2.479g | | 10=2(m+2) | | 3-2-210=n | | 3-2-n=210 | | 11y^2-52y+46=0 | | 3(v+1)=9 | | 3-2-210=210 | | (8/4v-24)-1=2/v-6 | | (8/4v-24)-1=(2/v-6) | | 2(v+1)=8 | | f(5)=2.479(5) | | 3-2+n-210=210 |