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Simplifying 3x + 7 = 42 + -2x Reorder the terms: 7 + 3x = 42 + -2x Solving 7 + 3x = 42 + -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. 7 + 3x + 2x = 42 + -2x + 2x Combine like terms: 3x + 2x = 5x 7 + 5x = 42 + -2x + 2x Combine like terms: -2x + 2x = 0 7 + 5x = 42 + 0 7 + 5x = 42 Add '-7' to each side of the equation. 7 + -7 + 5x = 42 + -7 Combine like terms: 7 + -7 = 0 0 + 5x = 42 + -7 5x = 42 + -7 Combine like terms: 42 + -7 = 35 5x = 35 Divide each side by '5'. x = 7 Simplifying x = 7
| 1+7x=49+x | | 3x+35=11x-53 | | 50=x^2+23x | | 50-22x=16x+24 | | 6x+29=8x+13 | | 9x-10x=144-45x | | 9x+8=4x+43 | | 109-3x=3x+19 | | -53-2x=7-8x | | 3y-6+y+22=5y+20-3y | | y=15x^2+43x+30 | | 3x^3-4x^2-7x=0 | | j+0.42=-2.5 | | 2x+3y=18 | | 5m^2-9m+4= | | 4x+13=-31 | | x-3y=3 | | 3x+16=-38 | | k-0.6=-5.2 | | n+3.5=-10 | | 1.2n-6.7=-1.7+2.2n | | x-0.36=1.2 | | d+20.23=40.5 | | 8s-10=6s | | 5+2n-3=6n+6-2n | | c-1.3=6 | | p+2.1=-5.6 | | y-1.7=20 | | 3x-2x-4=6(x+2) | | 4x-10=-5 | | x+2.5=7.2 | | b-5=-5 |