Question

X + 5y + 10z = 47 and y = z and x + y + z = 8

Answer 1

x=2, y=3, z=3

Explanation:

`x+y+z=8\\x+z+z=8\\x+2z=8\\\\x+5y+10z=47\\x+5z+10z=47\\x+15z=47\\\\x+2z=8\\x+15z=47\\\\-13z=-39\\z=3`

Since z=3, then y=3, which means x=2 since 2+3+3=8