19-a+4a=7

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Solution for 19-a+4a=7 equation:


Simplifying
19 + -1a + 4a = 7

Combine like terms: -1a + 4a = 3a
19 + 3a = 7

Solving
19 + 3a = 7

Solving for variable 'a'.

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

Add '-19' to each side of the equation.
19 + -19 + 3a = 7 + -19

Combine like terms: 19 + -19 = 0
0 + 3a = 7 + -19
3a = 7 + -19

Combine like terms: 7 + -19 = -12
3a = -12

Divide each side by '3'.
a = -4

Simplifying
a = -4

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