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Simplifying (9x + -1) + -1(4x + 7) = 7 Reorder the terms: (-1 + 9x) + -1(4x + 7) = 7 Remove parenthesis around (-1 + 9x) -1 + 9x + -1(4x + 7) = 7 Reorder the terms: -1 + 9x + -1(7 + 4x) = 7 -1 + 9x + (7 * -1 + 4x * -1) = 7 -1 + 9x + (-7 + -4x) = 7 Reorder the terms: -1 + -7 + 9x + -4x = 7 Combine like terms: -1 + -7 = -8 -8 + 9x + -4x = 7 Combine like terms: 9x + -4x = 5x -8 + 5x = 7 Solving -8 + 5x = 7 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + 5x = 7 + 8 Combine like terms: -8 + 8 = 0 0 + 5x = 7 + 8 5x = 7 + 8 Combine like terms: 7 + 8 = 15 5x = 15 Divide each side by '5'. x = 3 Simplifying x = 3
| 5-x=-7x+23 | | 13x+7=10x+10 | | 3x+2y=1.49 | | 7x=1/7 | | (2x+7)(10x+13)=y | | 15=2m/3-1 | | 2x^2-4x-2x=0 | | -3-k/5=-10 | | g^2+32-40=0 | | 3xy+3yx=0 | | (2/3)^4/(3/4)^2 | | 39/8 | | 11x+15=5x+51 | | 69/20 | | Y^2-2y-27=-4y-3 | | x^3-6x^2-4x+8=0 | | 5s/6+7=-3 | | 7y+3y=180 | | 12-(x+3)=2x(-5+x) | | 7x+4=2x+16 | | 9k+4=49 | | U=7(3n+33)+8(n+1) | | -12=r/8-5 | | Y=.5x-8 | | e/4+8=1 | | -P-11-4= | | 3y+3(y-6)=8y-4(y+10) | | 16x+35=9x+21 | | b/6-16=-9 | | 3(2x+5)=13x+7-7x+8 | | 9x+34=5x+18 | | U=109+31(22) |