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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