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Simplifying (3x2 + 4x + -4) + (4x2 + 5x + 13) + -1(7x2 + -17) = 0 Reorder the terms: (-4 + 4x + 3x2) + (4x2 + 5x + 13) + -1(7x2 + -17) = 0 Remove parenthesis around (-4 + 4x + 3x2) -4 + 4x + 3x2 + (4x2 + 5x + 13) + -1(7x2 + -17) = 0 Reorder the terms: -4 + 4x + 3x2 + (13 + 5x + 4x2) + -1(7x2 + -17) = 0 Remove parenthesis around (13 + 5x + 4x2) -4 + 4x + 3x2 + 13 + 5x + 4x2 + -1(7x2 + -17) = 0 Reorder the terms: -4 + 4x + 3x2 + 13 + 5x + 4x2 + -1(-17 + 7x2) = 0 -4 + 4x + 3x2 + 13 + 5x + 4x2 + (-17 * -1 + 7x2 * -1) = 0 -4 + 4x + 3x2 + 13 + 5x + 4x2 + (17 + -7x2) = 0 Reorder the terms: -4 + 13 + 17 + 4x + 5x + 3x2 + 4x2 + -7x2 = 0 Combine like terms: -4 + 13 = 9 9 + 17 + 4x + 5x + 3x2 + 4x2 + -7x2 = 0 Combine like terms: 9 + 17 = 26 26 + 4x + 5x + 3x2 + 4x2 + -7x2 = 0 Combine like terms: 4x + 5x = 9x 26 + 9x + 3x2 + 4x2 + -7x2 = 0 Combine like terms: 3x2 + 4x2 = 7x2 26 + 9x + 7x2 + -7x2 = 0 Combine like terms: 7x2 + -7x2 = 0 26 + 9x + 0 = 0 26 + 9x = 0 Solving 26 + 9x = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-26' to each side of the equation. 26 + -26 + 9x = 0 + -26 Combine like terms: 26 + -26 = 0 0 + 9x = 0 + -26 9x = 0 + -26 Combine like terms: 0 + -26 = -26 9x = -26 Divide each side by '9'. x = -2.888888889 Simplifying x = -2.888888889
| 3(1+x)=17+x | | 3n+7=18 | | 6x+7=127-6x | | 4x-19=2x+11 | | 7+5x=43+x | | 2x-2=10x-58 | | 2x+33=10x-55 | | 0=10a^4-5b^3+12a^3+25b | | 4x+62=9x+12 | | 12x+6=9x+15 | | 3(4+x)=30+x | | 6x-19=5x+11 | | 2x+13=55-4x | | 187-2x=34x+23 | | 7x+3=3x+35 | | 5-10x=57-38x | | 5+4+2x-x= | | -68-8x=10x+22 | | 6x+8=-142-9x | | 10=5x-5 | | 7(x+5)=4(x+14) | | 5(x-5)=38-2x | | 101-3x=15x+17 | | 12-7x=76-35x | | 8x+3=4x+35 | | 144-10x=10x+16 | | 3x+9=-82-10x | | 6x-2=96-8x | | 3x-6=-2x+24 | | 102-3x=4x+11 | | -3.5x=1.4 | | x+x+.65+x+.65+.36=10.90 |