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Simplifying (-9a + 4b + -1c) + -1(-7b + 8c + -2d) = 0 Remove parenthesis around (-9a + 4b + -1c) -9a + 4b + -1c + -1(-7b + 8c + -2d) = 0 -9a + 4b + -1c + (-7b * -1 + 8c * -1 + -2d * -1) = 0 -9a + 4b + -1c + (7b + -8c + 2d) = 0 Reorder the terms: -9a + 4b + 7b + -1c + -8c + 2d = 0 Combine like terms: 4b + 7b = 11b -9a + 11b + -1c + -8c + 2d = 0 Combine like terms: -1c + -8c = -9c -9a + 11b + -9c + 2d = 0 Solving -9a + 11b + -9c + 2d = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-11b' to each side of the equation. -9a + 11b + -9c + -11b + 2d = 0 + -11b Reorder the terms: -9a + 11b + -11b + -9c + 2d = 0 + -11b Combine like terms: 11b + -11b = 0 -9a + 0 + -9c + 2d = 0 + -11b -9a + -9c + 2d = 0 + -11b Remove the zero: -9a + -9c + 2d = -11b Add '9c' to each side of the equation. -9a + -9c + 9c + 2d = -11b + 9c Combine like terms: -9c + 9c = 0 -9a + 0 + 2d = -11b + 9c -9a + 2d = -11b + 9c Add '-2d' to each side of the equation. -9a + 2d + -2d = -11b + 9c + -2d Combine like terms: 2d + -2d = 0 -9a + 0 = -11b + 9c + -2d -9a = -11b + 9c + -2d Divide each side by '-9'. a = 1.222222222b + -1c + 0.2222222222d Simplifying a = 1.222222222b + -1c + 0.2222222222d
| n^2(-7n+3n-5)=m | | (5x^3+4)(5x^3-4)= | | (7t-5)(7t+5)= | | (5x^6+2)(x^6+9)= | | y-3=7(x-5) | | (4x^9+9)(x^9+8)= | | 9a^2-36=0 | | (8z-u)(4z+3u)= | | (-1/3)(-7)= | | (-1/3)(-6)= | | x=x-19/100 | | (3x-2)(x^2-5x+5)= | | 96x+x/27 | | (x^2-5x+5)(3x-2)= | | 5y-9=66 | | 16=v/3+15 | | w/5-15=5 | | (8x+3)(5x^2+9x+1)= | | 75.00+25.00h=40.00h | | 40h=760 | | 40h=140 | | -1=-1/4h-7 | | -1=-1/4-7 | | m=-.13(13)+8 | | 75+25n=162.50 | | 1/2-3/4 | | 75+25n=125 | | 114.00=0.80x+18 | | m=-.13(11)+8 | | y=0.80(100)+18 | | y=0.80(50)+18 | | m=-.13(9)+8 |