The equation is 70 = 7 (x + 4) and value of x is 6.
The area of rectangle is given by the formula -
Area of rectangle = length × width
Keep the value of length and width from the image.
70 = 7 (x + 4)
Performing multiplication on Right and Side of the equation
70 = 7x + 28
Rewriting the equation according to x
7x = 70 - 28
Performing subtraction on Right Hand Side of the equation
7x = 42
x = 42/7
Performing division on Right and Side of the equation
x = 6
Hence, the value of x is 6.
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