4.9=a+b

Solution for 4.9=a+b equation:

Simplifying
4.9 = a + b

Solving
4.9 = a + b

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
4.9 + -1a = a + -1a + b

Combine like terms: a + -1a = 0
4.9 + -1a = 0 + b
4.9 + -1a = b

Add '-4.9' to each side of the equation.
4.9 + -4.9 + -1a = -4.9 + b

Combine like terms: 4.9 + -4.9 = 0.0
0.0 + -1a = -4.9 + b
-1a = -4.9 + b

Divide each side by '-1'.
a = 4.9 + -1b

Simplifying
a = 4.9 + -1b