7+49(2a+15)=-13

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Solution for 7+49(2a+15)=-13 equation: 


Simplifying
7 + 49(2a + 15) = -13

Reorder the terms:
7 + 49(15 + 2a) = -13
7 + (15 * 49 + 2a * 49) = -13
7 + (735 + 98a) = -13

Combine like terms: 7 + 735 = 742
742 + 98a = -13

Solving
742 + 98a = -13

Solving for variable 'a'.

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

Add '-742' to each side of the equation.
742 + -742 + 98a = -13 + -742

Combine like terms: 742 + -742 = 0
0 + 98a = -13 + -742
98a = -13 + -742

Combine like terms: -13 + -742 = -755
98a = -755

Divide each side by '98'.
a = -7.704081633

Simplifying
a = -7.704081633

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