WRITING AND SOLVING AN EQUATION The squares are identical. What is the area of each square?
3x + 7
5x + 1
The area of each square is
square units.

9

Step-by-step explanation:

The square are identical; therefore, 3x + 7 is equal to 5x + 1

3x + 7 = 5x + 1

Get all the terms of x on one side and the integers on the other.

3x + 7 = 5x + 1

3x + 7 - 3x = 5x + 1 - 3x

7 = 2x + 1

7 - 1= 2x + 1 - 1

6 = 2x

Divide by 2 to find out what the value of x is.

6/2 = 2x/2

3 = x

To find out the length of the square, you need to substitute in the value of x, which is 3.

3x + 7 = 3*3 + 7 = 9 + 7 = 16

5x + 1 = 5*3 + 1 = 15 + 1 = 15

The length of the square is 16.

The area of the square is the length x length, which is 16*16 = 256.

answer: 25.4 units

step-by-step explanation: radius = 12.7 units

diameter = twice the radius

diameter = 12.7 x 2

= 25.4