15a-3b-7(3a+4b)=

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Solution for 15a-3b-7(3a+4b)= equation:


Simplifying
15a + -3b + -7(3a + 4b) = 0
15a + -3b + (3a * -7 + 4b * -7) = 0
15a + -3b + (-21a + -28b) = 0

Reorder the terms:
15a + -21a + -3b + -28b = 0

Combine like terms: 15a + -21a = -6a
-6a + -3b + -28b = 0

Combine like terms: -3b + -28b = -31b
-6a + -31b = 0

Solving
-6a + -31b = 0

Solving for variable 'a'.

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

Add '31b' to each side of the equation.
-6a + -31b + 31b = 0 + 31b

Combine like terms: -31b + 31b = 0
-6a + 0 = 0 + 31b
-6a = 0 + 31b
Remove the zero:
-6a = 31b

Divide each side by '-6'.
a = -5.166666667b

Simplifying
a = -5.166666667b

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