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Simplifying (3x + 20) = (x + 42) Reorder the terms: (20 + 3x) = (x + 42) Remove parenthesis around (20 + 3x) 20 + 3x = (x + 42) Reorder the terms: 20 + 3x = (42 + x) Remove parenthesis around (42 + x) 20 + 3x = 42 + x Solving 20 + 3x = 42 + x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1x' to each side of the equation. 20 + 3x + -1x = 42 + x + -1x Combine like terms: 3x + -1x = 2x 20 + 2x = 42 + x + -1x Combine like terms: x + -1x = 0 20 + 2x = 42 + 0 20 + 2x = 42 Add '-20' to each side of the equation. 20 + -20 + 2x = 42 + -20 Combine like terms: 20 + -20 = 0 0 + 2x = 42 + -20 2x = 42 + -20 Combine like terms: 42 + -20 = 22 2x = 22 Divide each side by '2'. x = 11 Simplifying x = 11
| 2x=33 | | 5x-6x+42=20x | | -6=60 | | 2/5=x/45 | | 12x^2+9x+6=0 | | .5x^2-x-12=0 | | 3a/4-12=3(a-12)/5 | | 8-d=16-2d | | 4x+56=46 | | (n-5)+2=-10 | | 2c/3+3c/4=51 | | 12-3p=2p+72 | | (x^4+y^5)(x^4-y^5)=0 | | x^4+12x^3+10x^2-9x+22=0 | | y=36x+12 | | 5x^2+14x=-8 | | 3=2+x/6 | | 7(x+7)+7=-32-4x | | 8x+3y=1 | | B^2+4-117=0 | | (4b+6)(4b-6)=0 | | 3c+2=-2 | | 10x^2-15x+20=0 | | 0=16t^2+24t+20 | | 6j+9=-6j-81 | | B^2+14-117=0 | | (3c-2)(4c-4)=0 | | Ln(6x)=8 | | -24=4(z+5) | | c=100 | | 7x^2(3x-5)=0 | | 4a-5-2a-9=44 |