10(10a-10)+9=7a+188

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Solution for 10(10a-10)+9=7a+188 equation:


Simplifying
10(10a + -10) + 9 = 7a + 188

Reorder the terms:
10(-10 + 10a) + 9 = 7a + 188
(-10 * 10 + 10a * 10) + 9 = 7a + 188
(-100 + 100a) + 9 = 7a + 188

Reorder the terms:
-100 + 9 + 100a = 7a + 188

Combine like terms: -100 + 9 = -91
-91 + 100a = 7a + 188

Reorder the terms:
-91 + 100a = 188 + 7a

Solving
-91 + 100a = 188 + 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.
-91 + 100a + -7a = 188 + 7a + -7a

Combine like terms: 100a + -7a = 93a
-91 + 93a = 188 + 7a + -7a

Combine like terms: 7a + -7a = 0
-91 + 93a = 188 + 0
-91 + 93a = 188

Add '91' to each side of the equation.
-91 + 91 + 93a = 188 + 91

Combine like terms: -91 + 91 = 0
0 + 93a = 188 + 91
93a = 188 + 91

Combine like terms: 188 + 91 = 279
93a = 279

Divide each side by '93'.
a = 3

Simplifying
a = 3

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