3a-4-5a+7=

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Solution for 3a-4-5a+7= equation:


Simplifying
3a + -4 + -5a + 7 = 0

Reorder the terms:
-4 + 7 + 3a + -5a = 0

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

Combine like terms: 3a + -5a = -2a
3 + -2a = 0

Solving
3 + -2a = 0

Solving for variable 'a'.

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

Add '-3' to each side of the equation.
3 + -3 + -2a = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -2a = 0 + -3
-2a = 0 + -3

Combine like terms: 0 + -3 = -3
-2a = -3

Divide each side by '-2'.
a = 1.5

Simplifying
a = 1.5

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