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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.​

Respuesta :

Answer:

7(x + 4) = 70

x = 6

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

6 units
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