-4(2z-3)+3(z-9)=20

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Solution for -4(2z-3)+3(z-9)=20 equation:


Simplifying
-4(2z + -3) + 3(z + -9) = 20

Reorder the terms:
-4(-3 + 2z) + 3(z + -9) = 20
(-3 * -4 + 2z * -4) + 3(z + -9) = 20
(12 + -8z) + 3(z + -9) = 20

Reorder the terms:
12 + -8z + 3(-9 + z) = 20
12 + -8z + (-9 * 3 + z * 3) = 20
12 + -8z + (-27 + 3z) = 20

Reorder the terms:
12 + -27 + -8z + 3z = 20

Combine like terms: 12 + -27 = -15
-15 + -8z + 3z = 20

Combine like terms: -8z + 3z = -5z
-15 + -5z = 20

Solving
-15 + -5z = 20

Solving for variable 'z'.

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

Add '15' to each side of the equation.
-15 + 15 + -5z = 20 + 15

Combine like terms: -15 + 15 = 0
0 + -5z = 20 + 15
-5z = 20 + 15

Combine like terms: 20 + 15 = 35
-5z = 35

Divide each side by '-5'.
z = -7

Simplifying
z = -7

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