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Simplifying 4(5z + -1) + -2(z + 6) = 7(z + 1) Reorder the terms: 4(-1 + 5z) + -2(z + 6) = 7(z + 1) (-1 * 4 + 5z * 4) + -2(z + 6) = 7(z + 1) (-4 + 20z) + -2(z + 6) = 7(z + 1) Reorder the terms: -4 + 20z + -2(6 + z) = 7(z + 1) -4 + 20z + (6 * -2 + z * -2) = 7(z + 1) -4 + 20z + (-12 + -2z) = 7(z + 1) Reorder the terms: -4 + -12 + 20z + -2z = 7(z + 1) Combine like terms: -4 + -12 = -16 -16 + 20z + -2z = 7(z + 1) Combine like terms: 20z + -2z = 18z -16 + 18z = 7(z + 1) Reorder the terms: -16 + 18z = 7(1 + z) -16 + 18z = (1 * 7 + z * 7) -16 + 18z = (7 + 7z) Solving -16 + 18z = 7 + 7z Solving for variable 'z'. Move all terms containing z to the left, all other terms to the right. Add '-7z' to each side of the equation. -16 + 18z + -7z = 7 + 7z + -7z Combine like terms: 18z + -7z = 11z -16 + 11z = 7 + 7z + -7z Combine like terms: 7z + -7z = 0 -16 + 11z = 7 + 0 -16 + 11z = 7 Add '16' to each side of the equation. -16 + 16 + 11z = 7 + 16 Combine like terms: -16 + 16 = 0 0 + 11z = 7 + 16 11z = 7 + 16 Combine like terms: 7 + 16 = 23 11z = 23 Divide each side by '11'. z = 2.090909091 Simplifying z = 2.090909091
| 3h^3+13h^2-16h=0 | | 5x-4.5=8 | | -7y+11y+5=2y+31 | | 7x(x+20)=20 | | -x+5(4)=28 | | 2(1+4x)-4x=14 | | 6r^2-9r=1 | | 3(y+4)=2y+y+5+7 | | 20+-3y+5y=28 | | -4-1y+y=4 | | 1=-4s^2-4s | | f(x)=2x^2+12x-14 | | 7(1-4y)=13(2y-3) | | 19=7-2h | | 8x+8=48findx | | -5-3y=8 | | y=4-1(0) | | 6x+10+-4x=12 | | 4-1y+2y=4 | | (r^1/4y^5/7)^28/r^5 | | 2a^3+7a-4=0 | | 25-81w^2=0 | | 5n-21=-42+2n | | 4/3×3.14×6^3 | | 12x^2+20x-8=0 | | 15=-.8x^2+1.6x+10 | | -20+3y+5y=28 | | 3t-10=-18+t | | x=1.875+0.125(9) | | -20-3y+5y=28 | | B-2(b-4)=7b | | 1.875+0.125y+5y=48 |