7(5a-b)-5(7b-8a)=

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Solution for 7(5a-b)-5(7b-8a)= equation:


Simplifying
7(5a + -1b) + -5(7b + -8a) = 0
(5a * 7 + -1b * 7) + -5(7b + -8a) = 0
(35a + -7b) + -5(7b + -8a) = 0

Reorder the terms:
35a + -7b + -5(-8a + 7b) = 0
35a + -7b + (-8a * -5 + 7b * -5) = 0
35a + -7b + (40a + -35b) = 0

Reorder the terms:
35a + 40a + -7b + -35b = 0

Combine like terms: 35a + 40a = 75a
75a + -7b + -35b = 0

Combine like terms: -7b + -35b = -42b
75a + -42b = 0

Solving
75a + -42b = 0

Solving for variable 'a'.

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

Add '42b' to each side of the equation.
75a + -42b + 42b = 0 + 42b

Combine like terms: -42b + 42b = 0
75a + 0 = 0 + 42b
75a = 0 + 42b
Remove the zero:
75a = 42b

Divide each side by '75'.
a = 0.56b

Simplifying
a = 0.56b

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