30-7a=10a-4

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Solution for 30-7a=10a-4 equation:


Simplifying
30 + -7a = 10a + -4

Reorder the terms:
30 + -7a = -4 + 10a

Solving
30 + -7a = -4 + 10a

Solving for variable 'a'.

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

Add '-10a' to each side of the equation.
30 + -7a + -10a = -4 + 10a + -10a

Combine like terms: -7a + -10a = -17a
30 + -17a = -4 + 10a + -10a

Combine like terms: 10a + -10a = 0
30 + -17a = -4 + 0
30 + -17a = -4

Add '-30' to each side of the equation.
30 + -30 + -17a = -4 + -30

Combine like terms: 30 + -30 = 0
0 + -17a = -4 + -30
-17a = -4 + -30

Combine like terms: -4 + -30 = -34
-17a = -34

Divide each side by '-17'.
a = 2

Simplifying
a = 2

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