-7a+-2a+-4a=13

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Solution for -7a+-2a+-4a=13 equation: 


Simplifying
-7a + -2a + -4a = 13

Combine like terms: -7a + -2a = -9a
-9a + -4a = 13

Combine like terms: -9a + -4a = -13a
-13a = 13

Solving
-13a = 13

Solving for variable 'a'.

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

Divide each side by '-13'.
a = -1

Simplifying
a = -1

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