10(2a+9b)-7(a+6b)=

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Solution for 10(2a+9b)-7(a+6b)= equation:


Simplifying
10(2a + 9b) + -7(a + 6b) = 0
(2a * 10 + 9b * 10) + -7(a + 6b) = 0
(20a + 90b) + -7(a + 6b) = 0
20a + 90b + (a * -7 + 6b * -7) = 0
20a + 90b + (-7a + -42b) = 0

Reorder the terms:
20a + -7a + 90b + -42b = 0

Combine like terms: 20a + -7a = 13a
13a + 90b + -42b = 0

Combine like terms: 90b + -42b = 48b
13a + 48b = 0

Solving
13a + 48b = 0

Solving for variable 'a'.

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

Add '-48b' to each side of the equation.
13a + 48b + -48b = 0 + -48b

Combine like terms: 48b + -48b = 0
13a + 0 = 0 + -48b
13a = 0 + -48b
Remove the zero:
13a = -48b

Divide each side by '13'.
a = -3.692307692b

Simplifying
a = -3.692307692b

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