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Simplifying (5x2 + 7x + 4) + -1(5x2 + -5) = 9x + -2 Reorder the terms: (4 + 7x + 5x2) + -1(5x2 + -5) = 9x + -2 Remove parenthesis around (4 + 7x + 5x2) 4 + 7x + 5x2 + -1(5x2 + -5) = 9x + -2 Reorder the terms: 4 + 7x + 5x2 + -1(-5 + 5x2) = 9x + -2 4 + 7x + 5x2 + (-5 * -1 + 5x2 * -1) = 9x + -2 4 + 7x + 5x2 + (5 + -5x2) = 9x + -2 Reorder the terms: 4 + 5 + 7x + 5x2 + -5x2 = 9x + -2 Combine like terms: 4 + 5 = 9 9 + 7x + 5x2 + -5x2 = 9x + -2 Combine like terms: 5x2 + -5x2 = 0 9 + 7x + 0 = 9x + -2 9 + 7x = 9x + -2 Reorder the terms: 9 + 7x = -2 + 9x Solving 9 + 7x = -2 + 9x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9x' to each side of the equation. 9 + 7x + -9x = -2 + 9x + -9x Combine like terms: 7x + -9x = -2x 9 + -2x = -2 + 9x + -9x Combine like terms: 9x + -9x = 0 9 + -2x = -2 + 0 9 + -2x = -2 Add '-9' to each side of the equation. 9 + -9 + -2x = -2 + -9 Combine like terms: 9 + -9 = 0 0 + -2x = -2 + -9 -2x = -2 + -9 Combine like terms: -2 + -9 = -11 -2x = -11 Divide each side by '-2'. x = 5.5 Simplifying x = 5.5
| 2x+59=1.25x | | -3+3*(6-4)= | | -143=-11x-11 | | 725.00+10.50x=1250.00 | | -(-7)= | | -0.6=-0.3(d+6) | | y+4+7y= | | p-57=19 | | [-2+(-4)]= | | 7.2+x=19.5 | | [3*3+3*(-11)]= | | 3(4z+7)-4(5z-9)-16z= | | y-6=22 | | 9=-5x+3x | | -3(5k+8)-4(4k+9)-14k= | | 1.4-6x= | | -72=-9n | | 3(1+4)-2(5n-3)=25 | | n+2=-36 | | 2x=32-23x | | 5d+2(6-d)=21 | | 5-(x-8)=5x-(3x+8) | | (8-y)(4y-3)=0 | | [-2+(-3)]= | | 7-5(x+6)=5-2(5-4x) | | =54 | | [3*3+3*(-13)]= | | 13x-8=6x-57 | | -2(4x-5)+6x=4x-7 | | 5x-(3x+6)=2x-(6x+5) | | 66-(6x+16)=6(x+4)+x | | y-7.5=5.4 |