7(-1)+5z=55

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Solution for 7(-1)+5z=55 equation: 


Simplifying
7(-1) + 5z = 55

Multiply 7 * -1
-7 + 5z = 55

Solving
-7 + 5z = 55

Solving for variable 'z'.

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

Add '7' to each side of the equation.
-7 + 7 + 5z = 55 + 7

Combine like terms: -7 + 7 = 0
0 + 5z = 55 + 7
5z = 55 + 7

Combine like terms: 55 + 7 = 62
5z = 62

Divide each side by '5'.
z = 12.4

Simplifying
z = 12.4

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