5(6z-1)-3(z+9)=21(z+1)

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Solution for 5(6z-1)-3(z+9)=21(z+1) equation:


Simplifying
5(6z + -1) + -3(z + 9) = 21(z + 1)

Reorder the terms:
5(-1 + 6z) + -3(z + 9) = 21(z + 1)
(-1 * 5 + 6z * 5) + -3(z + 9) = 21(z + 1)
(-5 + 30z) + -3(z + 9) = 21(z + 1)

Reorder the terms:
-5 + 30z + -3(9 + z) = 21(z + 1)
-5 + 30z + (9 * -3 + z * -3) = 21(z + 1)
-5 + 30z + (-27 + -3z) = 21(z + 1)

Reorder the terms:
-5 + -27 + 30z + -3z = 21(z + 1)

Combine like terms: -5 + -27 = -32
-32 + 30z + -3z = 21(z + 1)

Combine like terms: 30z + -3z = 27z
-32 + 27z = 21(z + 1)

Reorder the terms:
-32 + 27z = 21(1 + z)
-32 + 27z = (1 * 21 + z * 21)
-32 + 27z = (21 + 21z)

Solving
-32 + 27z = 21 + 21z

Solving for variable 'z'.

Move all terms containing z to the left, all other terms to the right.

Add '-21z' to each side of the equation.
-32 + 27z + -21z = 21 + 21z + -21z

Combine like terms: 27z + -21z = 6z
-32 + 6z = 21 + 21z + -21z

Combine like terms: 21z + -21z = 0
-32 + 6z = 21 + 0
-32 + 6z = 21

Add '32' to each side of the equation.
-32 + 32 + 6z = 21 + 32

Combine like terms: -32 + 32 = 0
0 + 6z = 21 + 32
6z = 21 + 32

Combine like terms: 21 + 32 = 53
6z = 53

Divide each side by '6'.
z = 8.833333333

Simplifying
z = 8.833333333

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