3z+15=4z+40

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Solution for 3z+15=4z+40 equation:


Simplifying
3z + 15 = 4z + 40

Reorder the terms:
15 + 3z = 4z + 40

Reorder the terms:
15 + 3z = 40 + 4z

Solving
15 + 3z = 40 + 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.
15 + 3z + -4z = 40 + 4z + -4z

Combine like terms: 3z + -4z = -1z
15 + -1z = 40 + 4z + -4z

Combine like terms: 4z + -4z = 0
15 + -1z = 40 + 0
15 + -1z = 40

Add '-15' to each side of the equation.
15 + -15 + -1z = 40 + -15

Combine like terms: 15 + -15 = 0
0 + -1z = 40 + -15
-1z = 40 + -15

Combine like terms: 40 + -15 = 25
-1z = 25

Divide each side by '-1'.
z = -25

Simplifying
z = -25

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