How to solve equation an equation without y using elimination method

Work only with the second equation at the beginning. Solve for x for it.

7x - 2x = 3                Combine the left hand side.

5x = 3                       Divide by 5

5x/5 = 3/5                Do the division

x = 3/5 = 0.6    

Now work with the top equation.

3(0.6) + 5y = 13              Multiply on the left.

1.8 + 5y = 13                   Subtract 1.8 from both sides.

1.8 - 1.8 + 5y = 13 - 1.8    Do the subtraction

5y = 11.2                          Divide by 5

5y/5 = 11.2/5

y = 2.24                           Answer

which expression can be used to convert 80 us dollars (usd) to australian dollars (aud)?

1 usd = 1.0343 aud

1 aud = 0.9668 usd

step-by-step explanation:

sorry just need the points

$650 per month plus utilities

step-by-step explanation:

just based on the info you gave, it would seem more cost effective to rent at $650 per month plus utilities.   if utilities are, in fact, $150 per month, your monthly living costs would be $800 as opposed to the other option of $825.