7a-(2a-9)=16

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Solution for 7a-(2a-9)=16 equation:


Simplifying
7a + -1(2a + -9) = 16

Reorder the terms:
7a + -1(-9 + 2a) = 16
7a + (-9 * -1 + 2a * -1) = 16
7a + (9 + -2a) = 16

Reorder the terms:
9 + 7a + -2a = 16

Combine like terms: 7a + -2a = 5a
9 + 5a = 16

Solving
9 + 5a = 16

Solving for variable 'a'.

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

Add '-9' to each side of the equation.
9 + -9 + 5a = 16 + -9

Combine like terms: 9 + -9 = 0
0 + 5a = 16 + -9
5a = 16 + -9

Combine like terms: 16 + -9 = 7
5a = 7

Divide each side by '5'.
a = 1.4

Simplifying
a = 1.4

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