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Simplifying 4x + (7x + 8) + (7x + 4) = 138 Reorder the terms: 4x + (8 + 7x) + (7x + 4) = 138 Remove parenthesis around (8 + 7x) 4x + 8 + 7x + (7x + 4) = 138 Reorder the terms: 4x + 8 + 7x + (4 + 7x) = 138 Remove parenthesis around (4 + 7x) 4x + 8 + 7x + 4 + 7x = 138 Reorder the terms: 8 + 4 + 4x + 7x + 7x = 138 Combine like terms: 8 + 4 = 12 12 + 4x + 7x + 7x = 138 Combine like terms: 4x + 7x = 11x 12 + 11x + 7x = 138 Combine like terms: 11x + 7x = 18x 12 + 18x = 138 Solving 12 + 18x = 138 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + 18x = 138 + -12 Combine like terms: 12 + -12 = 0 0 + 18x = 138 + -12 18x = 138 + -12 Combine like terms: 138 + -12 = 126 18x = 126 Divide each side by '18'. x = 7 Simplifying x = 7
| 2*4*9*6= | | 3(x-2)-24=5x-2(x+5) | | 9x-9=9(x-1) | | 87.7x=-2296.32 | | 53x-135=81 | | 3(2x+5)-x=6x+15 | | 3(2x+5)-x=5x+10 | | 2=-10+3r | | 12x^3-48x^2+45x=0 | | 3(2x+5)-x=6x+14 | | 3-6x-3x=84 | | 8.87=M-13.4 | | -6=2v+6 | | 5.57-4.26x-1.1x=20.578 | | 3(2x+5)-x=5x+15 | | 1=-14+5n | | y+2(y-6)=-(2y-14)+4 | | 12x^2+2x-30=0 | | 6a^2+29a-42=0 | | 2z=-32 | | (3x+2)+90+x=180 | | -3(x+5)=-21-x | | 91-y=163 | | -4=-4x+6x+8 | | 6x+4x-7=13 | | 21x-17=5(2x+2)-3 | | 6s^2+29s-42=0 | | v+6=-4 | | -4(r+6)=-62 | | 7a+8+6a+12= | | 2m-3m+12=-31 | | (3x+6)=(2x+18)+24 |