7a+-2b=5a+b

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Solution for 7a+-2b=5a+b equation:


Simplifying
7a + -2b = 5a + b

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

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.
7a + -5a + -2b = 5a + -5a + b

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

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

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

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

Combine like terms: b + 2b = 3b
2a = 3b

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

Simplifying
a = 1.5b

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