Answer:
d = 3
Explanation:
6*3=182d*6=12d54-18 = 12d36/12 = 12d/12d = 3
6 ( 3 + 2d ) = 54
First, solve the brackets.
18 + 12d = 54
Take 18 to the right side.
12d = 54 - 18
12d = 36
Divide both sides by 12.
1.6m questions
2.0m answers