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Simplifying -5(4b + 4) + (21b + -7) = 0 Reorder the terms: -5(4 + 4b) + (21b + -7) = 0 (4 * -5 + 4b * -5) + (21b + -7) = 0 (-20 + -20b) + (21b + -7) = 0 Reorder the terms: -20 + -20b + (-7 + 21b) = 0 Remove parenthesis around (-7 + 21b) -20 + -20b + -7 + 21b = 0 Reorder the terms: -20 + -7 + -20b + 21b = 0 Combine like terms: -20 + -7 = -27 -27 + -20b + 21b = 0 Combine like terms: -20b + 21b = 1b -27 + 1b = 0 Solving -27 + 1b = 0 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '27' to each side of the equation. -27 + 27 + 1b = 0 + 27 Combine like terms: -27 + 27 = 0 0 + 1b = 0 + 27 1b = 0 + 27 Combine like terms: 0 + 27 = 27 1b = 27 Divide each side by '1'. b = 27 Simplifying b = 27
| R^2-4r-6=0 | | (x^2-10x)+(y^2-6y)=-33 | | y(-2)=-6.8(-2)+5 | | 3x+4(2x-12)=73 | | 5y+18y-(-2y)+(-10y)= | | 0.12=0.5y | | 0.12=0.5 | | 5m-7=12 | | 4p-8p=16 | | 3(2y-0.3)=19.4-9 | | 8x+9y=-10 | | 4y-17=90 | | 2x+x^2-59=0 | | 7y+8=90 | | -5b+21=8b-3(b-7) | | 5x+5(2x-12)=30 | | z-8x=5z-7-6z | | q^3-2q^2+1=0 | | 6x^3-17x^2+5x+6=0 | | -2/11x=4/15 | | (6y+5)+(8y-13)=90 | | P=9t^4ln(8t) | | 3(4.52)-2y=16.50 | | (8m-6)= | | 4x^2+28x=400 | | x+8x=24 | | sinx=0.2 | | 3/5y=3 | | x^2+7x=100 | | 3(4.52)-2y=x | | 3/4y=3 | | x^2+7x=400 |