Algebra
posted by Pam .
Can someone please tell me how to solve this problem? Trying to help a teen who is staying with me with their homework, but I am clueless.
Thanks.

Please post the question.

Oops....sorry, I forgot to put the problem in.
2y = 228 + 8x
10x + 11y = 64
Solve each system of equations using the substitution method. 
what is 3 to the square root of 75 plus 2 to the square root of 5

Put them in standard form:
8x+2y=228
10x+11y=64
Elminate a variable. I will pick x. Multiply the top equation by 10, the second equation by 8
80x+20y=2280
80x+88y=64*8
now subtract the second equation from the first..
68y=2280+64*8
and proceed to solve for y. Then, substitue back in the original equation, either one, and solve for x. 
x+y=8 3xy=4