a+3=7-3a

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Solution for a+3=7-3a equation:


Simplifying
a + 3 = 7 + -3a

Reorder the terms:
3 + a = 7 + -3a

Solving
3 + a = 7 + -3a

Solving for variable 'a'.

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

Add '3a' to each side of the equation.
3 + a + 3a = 7 + -3a + 3a

Combine like terms: a + 3a = 4a
3 + 4a = 7 + -3a + 3a

Combine like terms: -3a + 3a = 0
3 + 4a = 7 + 0
3 + 4a = 7

Add '-3' to each side of the equation.
3 + -3 + 4a = 7 + -3

Combine like terms: 3 + -3 = 0
0 + 4a = 7 + -3
4a = 7 + -3

Combine like terms: 7 + -3 = 4
4a = 4

Divide each side by '4'.
a = 1

Simplifying
a = 1

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