a-(3a+5)=7-5a

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Solution for a-(3a+5)=7-5a equation:


Simplifying
a + -1(3a + 5) = 7 + -5a

Reorder the terms:
a + -1(5 + 3a) = 7 + -5a
a + (5 * -1 + 3a * -1) = 7 + -5a
a + (-5 + -3a) = 7 + -5a

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

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

Solving
-5 + -2a = 7 + -5a

Solving for variable 'a'.

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

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

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

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

Add '5' to each side of the equation.
-5 + 5 + 3a = 7 + 5

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

Combine like terms: 7 + 5 = 12
3a = 12

Divide each side by '3'.
a = 4

Simplifying
a = 4

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