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Simplifying -1[2z + -1(9z + 2)] = 2 + (6z + 5) Reorder the terms: -1[2z + -1(2 + 9z)] = 2 + (6z + 5) -1[2z + (2 * -1 + 9z * -1)] = 2 + (6z + 5) -1[2z + (-2 + -9z)] = 2 + (6z + 5) Reorder the terms: -1[-2 + 2z + -9z] = 2 + (6z + 5) Combine like terms: 2z + -9z = -7z -1[-2 + -7z] = 2 + (6z + 5) [-2 * -1 + -7z * -1] = 2 + (6z + 5) [2 + 7z] = 2 + (6z + 5) Reorder the terms: 2 + 7z = 2 + (5 + 6z) Remove parenthesis around (5 + 6z) 2 + 7z = 2 + 5 + 6z Combine like terms: 2 + 5 = 7 2 + 7z = 7 + 6z Solving 2 + 7z = 7 + 6z Solving for variable 'z'. Move all terms containing z to the left, all other terms to the right. Add '-6z' to each side of the equation. 2 + 7z + -6z = 7 + 6z + -6z Combine like terms: 7z + -6z = 1z 2 + 1z = 7 + 6z + -6z Combine like terms: 6z + -6z = 0 2 + 1z = 7 + 0 2 + 1z = 7 Add '-2' to each side of the equation. 2 + -2 + 1z = 7 + -2 Combine like terms: 2 + -2 = 0 0 + 1z = 7 + -2 1z = 7 + -2 Combine like terms: 7 + -2 = 5 1z = 5 Divide each side by '1'. z = 5 Simplifying z = 5
| 25.75=4t+s | | 11-4x=49 | | 30=2m | | xy+3x+6y+18= | | 5(y+4)+y=2(y+2)-2 | | m/6-7=1/2 | | 7p+pq-8pr= | | T=4s+25.75 | | 3x+y+5xi+yi=9-7yi | | 15y-15=-3y+75 | | (10x+7)+(4x+3)=24 | | 2(4x+9)=-32+34 | | 4=ts+25.75 | | 0.5*ln((100-x)1.1+x)=0.5*ln((100-x)1.1+1.21x) | | X+4x+7=180 | | 21-(21)= | | 15y-15=3y+75 | | (X+6)=(2x) | | 21=2y-11 | | T=25.75s+4 | | 4n-3=26 | | 3y+2.1=5y+y-18.9 | | 2x^3-4x^2=6x | | (x+6)=(2x+4) | | 32=5k+13k | | 27x-45=2x+17 | | -8n-1=-23 | | (9-2i)(9+2i)=0 | | 4(x-5)-10=25x-156 | | (3x+17)=(7x-15) | | 180-25= | | 5b=21+4d |