3a-4-2a=-7+2

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Solution for 3a-4-2a=-7+2 equation:


Simplifying
3a + -4 + -2a = -7 + 2

Reorder the terms:
-4 + 3a + -2a = -7 + 2

Combine like terms: 3a + -2a = 1a
-4 + 1a = -7 + 2

Combine like terms: -7 + 2 = -5
-4 + 1a = -5

Solving
-4 + 1a = -5

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 + 1a = -5 + 4

Combine like terms: -4 + 4 = 0
0 + 1a = -5 + 4
1a = -5 + 4

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

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

Simplifying
a = -1

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