3-7a+1=-3

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


Simplifying
3 + -7a + 1 = -3

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

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

Solving
4 + -7a = -3

Solving for variable 'a'.

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

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

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

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

Divide each side by '-7'.
a = 1

Simplifying
a = 1

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