4(-5a-4b)+7b=

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Solution for 4(-5a-4b)+7b= equation:


Simplifying
4(-5a + -4b) + 7b = 0
(-5a * 4 + -4b * 4) + 7b = 0
(-20a + -16b) + 7b = 0

Combine like terms: -16b + 7b = -9b
-20a + -9b = 0

Solving
-20a + -9b = 0

Solving for variable 'a'.

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

Add '9b' to each side of the equation.
-20a + -9b + 9b = 0 + 9b

Combine like terms: -9b + 9b = 0
-20a + 0 = 0 + 9b
-20a = 0 + 9b
Remove the zero:
-20a = 9b

Divide each side by '-20'.
a = -0.45b

Simplifying
a = -0.45b

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