6(3z-1)-3(z+4)=8(2+1)

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Solution for 6(3z-1)-3(z+4)=8(2+1) equation:


Simplifying
6(3z + -1) + -3(z + 4) = 8(2 + 1)

Reorder the terms:
6(-1 + 3z) + -3(z + 4) = 8(2 + 1)
(-1 * 6 + 3z * 6) + -3(z + 4) = 8(2 + 1)
(-6 + 18z) + -3(z + 4) = 8(2 + 1)

Reorder the terms:
-6 + 18z + -3(4 + z) = 8(2 + 1)
-6 + 18z + (4 * -3 + z * -3) = 8(2 + 1)
-6 + 18z + (-12 + -3z) = 8(2 + 1)

Reorder the terms:
-6 + -12 + 18z + -3z = 8(2 + 1)

Combine like terms: -6 + -12 = -18
-18 + 18z + -3z = 8(2 + 1)

Combine like terms: 18z + -3z = 15z
-18 + 15z = 8(2 + 1)

Combine like terms: 2 + 1 = 3
-18 + 15z = 8(3)

Multiply 8 * 3
-18 + 15z = 24

Solving
-18 + 15z = 24

Solving for variable 'z'.

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

Add '18' to each side of the equation.
-18 + 18 + 15z = 24 + 18

Combine like terms: -18 + 18 = 0
0 + 15z = 24 + 18
15z = 24 + 18

Combine like terms: 24 + 18 = 42
15z = 42

Divide each side by '15'.
z = 2.8

Simplifying
z = 2.8

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