3(z+5)=5(7-z)

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Solution for 3(z+5)=5(7-z) equation:


Simplifying
3(z + 5) = 5(7 + -1z)

Reorder the terms:
3(5 + z) = 5(7 + -1z)
(5 * 3 + z * 3) = 5(7 + -1z)
(15 + 3z) = 5(7 + -1z)
15 + 3z = (7 * 5 + -1z * 5)
15 + 3z = (35 + -5z)

Solving
15 + 3z = 35 + -5z

Solving for variable 'z'.

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

Add '5z' to each side of the equation.
15 + 3z + 5z = 35 + -5z + 5z

Combine like terms: 3z + 5z = 8z
15 + 8z = 35 + -5z + 5z

Combine like terms: -5z + 5z = 0
15 + 8z = 35 + 0
15 + 8z = 35

Add '-15' to each side of the equation.
15 + -15 + 8z = 35 + -15

Combine like terms: 15 + -15 = 0
0 + 8z = 35 + -15
8z = 35 + -15

Combine like terms: 35 + -15 = 20
8z = 20

Divide each side by '8'.
z = 2.5

Simplifying
z = 2.5

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