7(10a-7)-2=369

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Solution for 7(10a-7)-2=369 equation:


Simplifying
7(10a + -7) + -2 = 369

Reorder the terms:
7(-7 + 10a) + -2 = 369
(-7 * 7 + 10a * 7) + -2 = 369
(-49 + 70a) + -2 = 369

Reorder the terms:
-49 + -2 + 70a = 369

Combine like terms: -49 + -2 = -51
-51 + 70a = 369

Solving
-51 + 70a = 369

Solving for variable 'a'.

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

Add '51' to each side of the equation.
-51 + 51 + 70a = 369 + 51

Combine like terms: -51 + 51 = 0
0 + 70a = 369 + 51
70a = 369 + 51

Combine like terms: 369 + 51 = 420
70a = 420

Divide each side by '70'.
a = 6

Simplifying
a = 6

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