A math problem I am having a really hard time solving

Question

A $62,000 trust is to be invested in bonds paying 9%, CDs paying 8%, and mortgages paying 10%. The bond and CD investment together must equal the mortgage investment. To earn a $5710 annual income from the investments, how much should the bank invest in bonds?

Answer 1

x represents the amount for bonds

x represents the amount of CD

62000 - 2x represents amour of mortgage

0.09x + 0.08x - 01(62000 - 2x) = 5710

Can you solve for x and answer?

Answer 2

.09x+.08y+.1z=5710

x+y+z=62000

Need trial and error.