3a+20=-2a+40

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Solution for 3a+20=-2a+40 equation:


Simplifying
3a + 20 = -2a + 40

Reorder the terms:
20 + 3a = -2a + 40

Reorder the terms:
20 + 3a = 40 + -2a

Solving
20 + 3a = 40 + -2a

Solving for variable 'a'.

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

Add '2a' to each side of the equation.
20 + 3a + 2a = 40 + -2a + 2a

Combine like terms: 3a + 2a = 5a
20 + 5a = 40 + -2a + 2a

Combine like terms: -2a + 2a = 0
20 + 5a = 40 + 0
20 + 5a = 40

Add '-20' to each side of the equation.
20 + -20 + 5a = 40 + -20

Combine like terms: 20 + -20 = 0
0 + 5a = 40 + -20
5a = 40 + -20

Combine like terms: 40 + -20 = 20
5a = 20

Divide each side by '5'.
a = 4

Simplifying
a = 4

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