You have equation:

Subtract 2x from both sides:

But look at your first equation, you know that 2x equals 3y-2. So substitute:

Simplify:

Therefore:

Subtract 1 from both sides:

divide by 2:

Go back to original equation:

Substitute:

Multiply:

Add 2 to both sides:

Divide by 3:

Can you do the other ones?