-4(9a-b)-(a-7b)=

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Solution for -4(9a-b)-(a-7b)= equation:


Simplifying
-4(9a + -1b) + -1(a + -7b) = 0
(9a * -4 + -1b * -4) + -1(a + -7b) = 0
(-36a + 4b) + -1(a + -7b) = 0
-36a + 4b + (a * -1 + -7b * -1) = 0
-36a + 4b + (-1a + 7b) = 0

Reorder the terms:
-36a + -1a + 4b + 7b = 0

Combine like terms: -36a + -1a = -37a
-37a + 4b + 7b = 0

Combine like terms: 4b + 7b = 11b
-37a + 11b = 0

Solving
-37a + 11b = 0

Solving for variable 'a'.

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

Add '-11b' to each side of the equation.
-37a + 11b + -11b = 0 + -11b

Combine like terms: 11b + -11b = 0
-37a + 0 = 0 + -11b
-37a = 0 + -11b
Remove the zero:
-37a = -11b

Divide each side by '-37'.
a = 0.2972972973b

Simplifying
a = 0.2972972973b

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