63=4a+5a

Solution for 63=4a+5a equation:

Simplifying
63 = 4a + 5a

Combine like terms: 4a + 5a = 9a
63 = 9a

Solving
63 = 9a

Solving for variable 'a'.

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

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

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

Add '-63' to each side of the equation.
63 + -63 + -9a = 0 + -63

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

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

Divide each side by '-9'.
a = 7

Simplifying
a = 7