7(j+3)+15=78

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Solution for 7(j+3)+15=78 equation:


Simplifying
7(j + 3) + 15 = 78

Reorder the terms:
7(3 + j) + 15 = 78
(3 * 7 + j * 7) + 15 = 78
(21 + 7j) + 15 = 78

Reorder the terms:
21 + 15 + 7j = 78

Combine like terms: 21 + 15 = 36
36 + 7j = 78

Solving
36 + 7j = 78

Solving for variable 'j'.

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

Add '-36' to each side of the equation.
36 + -36 + 7j = 78 + -36

Combine like terms: 36 + -36 = 0
0 + 7j = 78 + -36
7j = 78 + -36

Combine like terms: 78 + -36 = 42
7j = 42

Divide each side by '7'.
j = 6

Simplifying
j = 6

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