9(7+z)=45

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Solution for 9(7+z)=45 equation: 


Simplifying
9(7 + z) = 45
(7 * 9 + z * 9) = 45
(63 + 9z) = 45

Solving
63 + 9z = 45

Solving for variable 'z'.

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

Add '-63' to each side of the equation.
63 + -63 + 9z = 45 + -63

Combine like terms: 63 + -63 = 0
0 + 9z = 45 + -63
9z = 45 + -63

Combine like terms: 45 + -63 = -18
9z = -18

Divide each side by '9'.
z = -2

Simplifying
z = -2

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