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Simplifying (2x + -1) + -1(4x + 4) = 7 Reorder the terms: (-1 + 2x) + -1(4x + 4) = 7 Remove parenthesis around (-1 + 2x) -1 + 2x + -1(4x + 4) = 7 Reorder the terms: -1 + 2x + -1(4 + 4x) = 7 -1 + 2x + (4 * -1 + 4x * -1) = 7 -1 + 2x + (-4 + -4x) = 7 Reorder the terms: -1 + -4 + 2x + -4x = 7 Combine like terms: -1 + -4 = -5 -5 + 2x + -4x = 7 Combine like terms: 2x + -4x = -2x -5 + -2x = 7 Solving -5 + -2x = 7 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -2x = 7 + 5 Combine like terms: -5 + 5 = 0 0 + -2x = 7 + 5 -2x = 7 + 5 Combine like terms: 7 + 5 = 12 -2x = 12 Divide each side by '-2'. x = -6 Simplifying x = -6
| 9y^2+66y+21= | | 5x^2+25x=4x^2+24x+56 | | 0.5(2z+5)+1.5=0.5(2z-5) | | 7h-9h= | | X^2+4x-56=30 | | 5(2x+6)=25 | | -7(6k+7)=-5k+25 | | 1.8x-0.001x^2=0.3x+60 | | 5x+1.6=9.1 | | 15u-6u-21u= | | 12-6h=6+-12 | | 4-.5x=.33x | | 11x+7=10x-3 | | (5x^2-3)(2x+1)= | | 20x-2=40x+2 | | Y=4*1+7 | | 2y-6y-4y+8y= | | Y=4*0+7 | | 4k^2-60k^2+224k=0 | | (5x-7)=(4x-2) | | 10x^3+5x^2-6x-3= | | 3(3x-4)=ax-b | | Y=4*-1+7 | | 6+4x=37 | | 4j+13=10 | | 7385-67x=5250 | | 3x+(x+2)=10 | | Y=4*-2+7 | | 3(3x-4)=ax-4 | | 24y-12=12 | | (5i+2)(5i-2)=0 | | 2x=5y+40 |