7-a=5+3a

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Solution for 7-a=5+3a equation:


Simplifying
7 + -1a = 5 + 3a

Solving
7 + -1a = 5 + 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.
7 + -1a + -3a = 5 + 3a + -3a

Combine like terms: -1a + -3a = -4a
7 + -4a = 5 + 3a + -3a

Combine like terms: 3a + -3a = 0
7 + -4a = 5 + 0
7 + -4a = 5

Add '-7' to each side of the equation.
7 + -7 + -4a = 5 + -7

Combine like terms: 7 + -7 = 0
0 + -4a = 5 + -7
-4a = 5 + -7

Combine like terms: 5 + -7 = -2
-4a = -2

Divide each side by '-4'.
a = 0.5

Simplifying
a = 0.5

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