45-6a=-3(a-7)

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Solution for 45-6a=-3(a-7) equation:


Simplifying
45 + -6a = -3(a + -7)

Reorder the terms:
45 + -6a = -3(-7 + a)
45 + -6a = (-7 * -3 + a * -3)
45 + -6a = (21 + -3a)

Solving
45 + -6a = 21 + -3a

Solving for variable 'a'.

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

Add '3a' to each side of the equation.
45 + -6a + 3a = 21 + -3a + 3a

Combine like terms: -6a + 3a = -3a
45 + -3a = 21 + -3a + 3a

Combine like terms: -3a + 3a = 0
45 + -3a = 21 + 0
45 + -3a = 21

Add '-45' to each side of the equation.
45 + -45 + -3a = 21 + -45

Combine like terms: 45 + -45 = 0
0 + -3a = 21 + -45
-3a = 21 + -45

Combine like terms: 21 + -45 = -24
-3a = -24

Divide each side by '-3'.
a = 8

Simplifying
a = 8

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