7a+21b=35

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Solution for 7a+21b=35 equation: 


Simplifying
7a + 21b = 35

Solving
7a + 21b = 35

Solving for variable 'a'.

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

Add '-21b' to each side of the equation.
7a + 21b + -21b = 35 + -21b

Combine like terms: 21b + -21b = 0
7a + 0 = 35 + -21b
7a = 35 + -21b

Divide each side by '7'.
a = 5 + -3b

Simplifying
a = 5 + -3b

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