Question

A rectangle has side lengths of 7units and (x + 4) units. When multiplied the area is 70 units². Write and solve an equation that will allow you to find the value of x.​

Answer 1

7x6+4=70 since six plus four is ten and ten times seven is seventy

6 units

Answer 2

7(x + 4) = 70

x = 6

Explanation:

7(x + 4) = 70 Distribute the 7. Multiply everything inside the parentheses by 7

7x + 28 =70 Subtract 28 from both sides of the equation

7x = 42 Divide both sides by 7

x = 6