Can you put the question in English?
Step-by-step explanation:
(7 + x) / 3 = 2x - 5
7 + x = 3(2x - 5) (multiply 3 on both sides)
7 + x = 6x - 15 (distributive property)
5x = 22 (arrange like terms)
x = 4.4 (divide 5 on both sides)
Answer:
His first answer is wrong.
Step-by-step explanation:
The bar should only be over the 6 since it is the only number repeating.
The answer is A, 42 cubic units