3a+1-4=-a+7

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Solution for 3a+1-4=-a+7 equation:


Simplifying
3a + 1 + -4 = -1a + 7

Reorder the terms:
1 + -4 + 3a = -1a + 7

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

Reorder the terms:
-3 + 3a = 7 + -1a

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

Solving for variable 'a'.

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

Add 'a' to each side of the equation.
-3 + 3a + a = 7 + -1a + a

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

Combine like terms: -1a + a = 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 = 10
4a = 10

Divide each side by '4'.
a = 2.5

Simplifying
a = 2.5

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