10a-7(a+2)=19

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Solution for 10a-7(a+2)=19 equation:


Simplifying
10a + -7(a + 2) = 19

Reorder the terms:
10a + -7(2 + a) = 19
10a + (2 * -7 + a * -7) = 19
10a + (-14 + -7a) = 19

Reorder the terms:
-14 + 10a + -7a = 19

Combine like terms: 10a + -7a = 3a
-14 + 3a = 19

Solving
-14 + 3a = 19

Solving for variable 'a'.

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

Add '14' to each side of the equation.
-14 + 14 + 3a = 19 + 14

Combine like terms: -14 + 14 = 0
0 + 3a = 19 + 14
3a = 19 + 14

Combine like terms: 19 + 14 = 33
3a = 33

Divide each side by '3'.
a = 11

Simplifying
a = 11

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