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Simplifying 4x + (7 + x) = 42 Remove parenthesis around (7 + x) 4x + 7 + x = 42 Reorder the terms: 7 + 4x + x = 42 Combine like terms: 4x + x = 5x 7 + 5x = 42 Solving 7 + 5x = 42 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. 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
| 4x+7=42 | | 224=14t | | 4x-x^2=-12 | | 8z-3=12z+9 | | -6=z-8 | | 50=40/100 | | B=(6-b)(8b-1) | | 40/58 | | 100/58 | | 58/100 | | X/5+11/2x+11/20=5x+1/4 | | 58/40 | | 40/100(135) | | 14-48=3(x-2)-4 | | A=(3a+2)(5a-3) | | -2x-22=-84 | | -(2x-22)=-84 | | -6x-36=-42 | | -2(3x-18)=-42 | | 2x-1=x-5 | | -30x-150=-90 | | (3x^2y^3)3= | | -5(6x-30)=-90 | | (w+6)+(-5)= | | 6.5x=117 | | -18x-126=-18 | | 0=6x^2-30x+100 | | 9y/10+3/5=2y/5+7/10 | | 3x+y^2=6 | | (x-5)*x^2=98 | | 7n^2+11n-50=0 | | 76-7x=11x+18 |