1200a+45-1800a+60=

Solution for 1200a+45-1800a+60= equation:

Simplifying
1200a + 45 + -1800a + 60 = 0

Reorder the terms:
45 + 60 + 1200a + -1800a = 0

Combine like terms: 45 + 60 = 105
105 + 1200a + -1800a = 0

Combine like terms: 1200a + -1800a = -600a
105 + -600a = 0

Solving
105 + -600a = 0

Solving for variable 'a'.

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

Add '-105' to each side of the equation.
105 + -105 + -600a = 0 + -105

Combine like terms: 105 + -105 = 0
0 + -600a = 0 + -105
-600a = 0 + -105

Combine like terms: 0 + -105 = -105
-600a = -105

Divide each side by '-600'.
a = 0.175

Simplifying
a = 0.175