Question

Find the perimeter??? Anyone?!!!!

Answer 1

Answer:

a.) 2(2x)+2(4x-3)

b.)2(2x)+2(4x-3)=42

Step-by-step explanation:

b.)2(2x)+2(4x-3)=42

distribute

4x+8x-3=42

add the like terms

12x-3=42

move the -3 by adding to both sides

12x=45

divide both sides by 12

12x/12=45/12

x=3.75

and to make sure it's right, plug x into the equation.

2(2(3.75))+2(4(3.75)-3)=42

now multiply/add/subtract everything.

2x2x3.75=15 (This was the 1st set of parenthesis)

2x4x3.75-3=27 (This was the 2nd set of parenthesis)

15+27=42

42=42