Steps in solving this equation plz

Equation:

Step-by-step explanation:

3y = x + 15

y + 3x = 4

To get the y-value Subtract 3x from both sides.

y = -3x + 4

Then substitute;

3(-3x + 4) = x + 15

Distribute: -9x + 12 = x + 15

Subtract x from both sides

-10x + 12 = 15

Subtract 12 from both sides

-10x = 3

Divide both sides by -10

x = 3/-10

Then to get the value of y;

y = -3(3/-10) + 4

investment b is an ordinary annuity with $3,909.64 in the account after one year.

step-by-step explanation: