Last year, mark was 46 inches tall. this year, marks height is 3 inches less than peters height. peter is 51 inches tall. how tall is mark?
write an equation to represent the situation.
then solve the equation to answer the problem. i am so confused on this question. can anyone me?

1. 22

2. 1

3. 7

4. 18

step-by-step explanation

e2020 got it right

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

eventually after a few more steps, your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x