7(10a+3b)=

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Solution for 7(10a+3b)= equation: 


Simplifying
7(10a + 3b) = 0
(10a * 7 + 3b * 7) = 0
(70a + 21b) = 0

Solving
70a + 21b = 0

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.
70a + 21b + -21b = 0 + -21b

Combine like terms: 21b + -21b = 0
70a + 0 = 0 + -21b
70a = 0 + -21b
Remove the zero:
70a = -21b

Divide each side by '70'.
a = -0.3b

Simplifying
a = -0.3b

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