er+7m=z

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Solution for er+7m=z equation: 


Simplifying
er + 7m = z

Solving
er + 7m = z

Solving for variable 'e'.

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

Add '-7m' to each side of the equation.
er + 7m + -7m = -7m + z

Combine like terms: 7m + -7m = 0
er + 0 = -7m + z
er = -7m + z

Divide each side by 'r'.
e = -7mr-1 + r-1z

Simplifying
e = -7mr-1 + r-1z

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