4a+2.5b=13

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Solution for 4a+2.5b=13 equation: 


Simplifying
4a + 2.5b = 13

Solving
4a + 2.5b = 13

Solving for variable 'a'.

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

Add '-2.5b' to each side of the equation.
4a + 2.5b + -2.5b = 13 + -2.5b

Combine like terms: 2.5b + -2.5b = 0.0
4a + 0.0 = 13 + -2.5b
4a = 13 + -2.5b

Divide each side by '4'.
a = 3.25 + -0.625b

Simplifying
a = 3.25 + -0.625b

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