3a+7b=a+4b

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Solution for 3a+7b=a+4b equation:


Simplifying
3a + 7b = a + 4b

Solving
3a + 7b = a + 4b

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
3a + -1a + 7b = a + -1a + 4b

Combine like terms: 3a + -1a = 2a
2a + 7b = a + -1a + 4b

Combine like terms: a + -1a = 0
2a + 7b = 0 + 4b
2a + 7b = 4b

Add '-7b' to each side of the equation.
2a + 7b + -7b = 4b + -7b

Combine like terms: 7b + -7b = 0
2a + 0 = 4b + -7b
2a = 4b + -7b

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

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

Simplifying
a = -1.5b

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