Question

Write an equation to find the amount of money in Pertro’s account if the total of all their accounts is $148.

Answer 1

Answer:

P = 2(21 + 3)

= 2(24)

=$48

Step-by-step explanation:

Add them all up.

s + 2(s+3) + 4s-5 = 148

s + 2s + 6 + 4s - 5 = 148

Group all s together and all numbers together 7s + 1 = 148

7s = 147

Divide by 7

s = 21

Plug s=21 back in for Petro

Answer 2

Answer:

$48

Step-by-step explanation:

If all their accounts added together equal $148, take the equations in their balances and add them together and set them equal to $148.

s + 2(s+3) + 4s-5 = 148

Simplify the equation:   s + 2s +6 + 4s - 5 = 148

More simplified:   7s + 1 = 148

Get s by itself by subtracting the 1 from both side then dividing both sides by 7 and you get that s = 21.

Now plug 21 into the equation for Petros's account.

2(21+3) = 2(24) = 48

Petros has $48 in his account.