Solution :
Let us first solve the value of x in the square .
3x + 1 + 3x + 1 + 3x + 1 + 3x + 1
= 12x + 4 = 2x + x + 8 + 4x + 2
= 12x + 4 = 7x + 8 + 2
Step 1: Simplify both sides of the equation.
12 x + 4 =7x + 8 + 2
12x + 4 = (7x)+(8+2)(Combine Like Terms)
12x+4=7x+10
12x+4=7x+10
Step 2: Subtract 7x from both sides.
12x+4−7x=7x+10−7x
5x+4=10
Step 3: Subtract 4 from both sides.
5x+4−4=10−4
5x=6
Step 4: Divide both sides by 5.
5x / 5 = 6/5
x=6/5