5(z-8)=4(z-7)

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Solution for 5(z-8)=4(z-7) equation:


Simplifying
5(z + -8) = 4(z + -7)

Reorder the terms:
5(-8 + z) = 4(z + -7)
(-8 * 5 + z * 5) = 4(z + -7)
(-40 + 5z) = 4(z + -7)

Reorder the terms:
-40 + 5z = 4(-7 + z)
-40 + 5z = (-7 * 4 + z * 4)
-40 + 5z = (-28 + 4z)

Solving
-40 + 5z = -28 + 4z

Solving for variable 'z'.

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

Add '-4z' to each side of the equation.
-40 + 5z + -4z = -28 + 4z + -4z

Combine like terms: 5z + -4z = 1z
-40 + 1z = -28 + 4z + -4z

Combine like terms: 4z + -4z = 0
-40 + 1z = -28 + 0
-40 + 1z = -28

Add '40' to each side of the equation.
-40 + 40 + 1z = -28 + 40

Combine like terms: -40 + 40 = 0
0 + 1z = -28 + 40
1z = -28 + 40

Combine like terms: -28 + 40 = 12
1z = 12

Divide each side by '1'.
z = 12

Simplifying
z = 12

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