3a+(a+5)=45

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Solution for 3a+(a+5)=45 equation:


Simplifying
3a + (a + 5) = 45

Reorder the terms:
3a + (5 + a) = 45

Remove parenthesis around (5 + a)
3a + 5 + a = 45

Reorder the terms:
5 + 3a + a = 45

Combine like terms: 3a + a = 4a
5 + 4a = 45

Solving
5 + 4a = 45

Solving for variable 'a'.

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

Add '-5' to each side of the equation.
5 + -5 + 4a = 45 + -5

Combine like terms: 5 + -5 = 0
0 + 4a = 45 + -5
4a = 45 + -5

Combine like terms: 45 + -5 = 40
4a = 40

Divide each side by '4'.
a = 10

Simplifying
a = 10

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