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Simplifying -1[4z + -1(7z + 7)] = 7 + (2z + 1) Reorder the terms: -1[4z + -1(7 + 7z)] = 7 + (2z + 1) -1[4z + (7 * -1 + 7z * -1)] = 7 + (2z + 1) -1[4z + (-7 + -7z)] = 7 + (2z + 1) Reorder the terms: -1[-7 + 4z + -7z] = 7 + (2z + 1) Combine like terms: 4z + -7z = -3z -1[-7 + -3z] = 7 + (2z + 1) [-7 * -1 + -3z * -1] = 7 + (2z + 1) [7 + 3z] = 7 + (2z + 1) Reorder the terms: 7 + 3z = 7 + (1 + 2z) Remove parenthesis around (1 + 2z) 7 + 3z = 7 + 1 + 2z Combine like terms: 7 + 1 = 8 7 + 3z = 8 + 2z Solving 7 + 3z = 8 + 2z Solving for variable 'z'. Move all terms containing z to the left, all other terms to the right. Add '-2z' to each side of the equation. 7 + 3z + -2z = 8 + 2z + -2z Combine like terms: 3z + -2z = 1z 7 + 1z = 8 + 2z + -2z Combine like terms: 2z + -2z = 0 7 + 1z = 8 + 0 7 + 1z = 8 Add '-7' to each side of the equation. 7 + -7 + 1z = 8 + -7 Combine like terms: 7 + -7 = 0 0 + 1z = 8 + -7 1z = 8 + -7 Combine like terms: 8 + -7 = 1 1z = 1 Divide each side by '1'. z = 1 Simplifying z = 1
| 3x-8=-8-4x | | 10-4(a-3)+7+2(a+4)=43 | | 12n^2+58=80n | | 8x^6-22x+15=0 | | (x+8)2=24 | | -3+4x=-10 | | (50x)(50x)+200x+150=0 | | 3x-13y=18 | | 12m-48=3m-3 | | 10=x-3x-2 | | 14-2(3a+1)=6(4+a) | | 6t^2-7x-5=0 | | 0=-2x+x+7 | | -[3x-(2x+6)]=-6-[3(2x-5)-3x] | | 255=.5x+.03x | | -7y=258 | | -4-7x+5x=2 | | x2/3-6x1/3+5=0 | | x2/3-6x1/3+5 | | 9y(y+3)=9y-5 | | 4(6-z)-34=26z-5(2+6z) | | 6+4x-5x=-6 | | 6x-36=-9(x-1) | | f(x)=-5x^2+8x+5 | | -5(2r+3)=3 | | 16x^2+88x+224=0 | | f/3+8=16 | | 3n+4=n+20 | | 2x^2+11x+28=0 | | 11(t-3)+3t=7(2t+3)-9 | | (-5+7i)+(5-2i)= | | 0.40=g/22+0.146 |