4a-15=7a-45

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Solution for 4a-15=7a-45 equation:


Simplifying
4a + -15 = 7a + -45

Reorder the terms:
-15 + 4a = 7a + -45

Reorder the terms:
-15 + 4a = -45 + 7a

Solving
-15 + 4a = -45 + 7a

Solving for variable 'a'.

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

Add '-7a' to each side of the equation.
-15 + 4a + -7a = -45 + 7a + -7a

Combine like terms: 4a + -7a = -3a
-15 + -3a = -45 + 7a + -7a

Combine like terms: 7a + -7a = 0
-15 + -3a = -45 + 0
-15 + -3a = -45

Add '15' to each side of the equation.
-15 + 15 + -3a = -45 + 15

Combine like terms: -15 + 15 = 0
0 + -3a = -45 + 15
-3a = -45 + 15

Combine like terms: -45 + 15 = -30
-3a = -30

Divide each side by '-3'.
a = 10

Simplifying
a = 10

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