9a+90=-63

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Solution for 9a+90=-63 equation: 


Simplifying
9a + 90 = -63

Reorder the terms:
90 + 9a = -63

Solving
90 + 9a = -63

Solving for variable 'a'.

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

Add '-90' to each side of the equation.
90 + -90 + 9a = -63 + -90

Combine like terms: 90 + -90 = 0
0 + 9a = -63 + -90
9a = -63 + -90

Combine like terms: -63 + -90 = -153
9a = -153

Divide each side by '9'.
a = -17

Simplifying
a = -17

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