3a+4a=2a-5

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Solution for 3a+4a=2a-5 equation: 


Simplifying
3a + 4a = 2a + -5

Combine like terms: 3a + 4a = 7a
7a = 2a + -5

Reorder the terms:
7a = -5 + 2a

Solving
7a = -5 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
7a + -2a = -5 + 2a + -2a

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

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

Divide each side by '5'.
a = -1

Simplifying
a = -1

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