Question

B = 3m + 2p
Work out the value of p when B= 2 and m = 5

Answer 1

This is called a "substitution problem" is where you have variable that have defined values and plug them in value calculate the expression.

B = 3m + 2p # Starting equation

2 = (3)(5) + 2p # Substitution

2 = 15 + 2p # Multiplication

-13 = 2p # Subtract 15 from both sides

`(-13)/(2)` = p # Divide both sides from 2

p =
`(-13)/(2)` # Use the reflexive property of equality

Hope this helps!

Answer 2

-13/2 = p

Explanation:

B = 3m + 2p

Let B =2 and m=5

2 = 3(5)+2p

2 = 15+2p

2-15 = 2p

-13 = 2p

Divide by 2

-13/2 = p