7(a-3)=4b

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Solution for 7(a-3)=4b equation: 


Simplifying
7(a + -3) = 4b

Reorder the terms:
7(-3 + a) = 4b
(-3 * 7 + a * 7) = 4b
(-21 + 7a) = 4b

Solving
-21 + 7a = 4b

Solving for variable 'a'.

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

Add '21' to each side of the equation.
-21 + 21 + 7a = 21 + 4b

Combine like terms: -21 + 21 = 0
0 + 7a = 21 + 4b
7a = 21 + 4b

Divide each side by '7'.
a = 3 + 0.5714285714b

Simplifying
a = 3 + 0.5714285714b

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