7j+12=3(j+20)

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Solution for 7j+12=3(j+20) equation:


Simplifying
7j + 12 = 3(j + 20)

Reorder the terms:
12 + 7j = 3(j + 20)

Reorder the terms:
12 + 7j = 3(20 + j)
12 + 7j = (20 * 3 + j * 3)
12 + 7j = (60 + 3j)

Solving
12 + 7j = 60 + 3j

Solving for variable 'j'.

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

Add '-3j' to each side of the equation.
12 + 7j + -3j = 60 + 3j + -3j

Combine like terms: 7j + -3j = 4j
12 + 4j = 60 + 3j + -3j

Combine like terms: 3j + -3j = 0
12 + 4j = 60 + 0
12 + 4j = 60

Add '-12' to each side of the equation.
12 + -12 + 4j = 60 + -12

Combine like terms: 12 + -12 = 0
0 + 4j = 60 + -12
4j = 60 + -12

Combine like terms: 60 + -12 = 48
4j = 48

Divide each side by '4'.
j = 12

Simplifying
j = 12

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