^^^ Word bank up top

2. Finding the _
of an expression means evaluating the expression.
3. The _
of a number is that number's distance from 0 on a number line.
4. A(n) _
is formed by numbers and variables connected by operations such as addition, subtraction,
multiplication, division, raising to powers, and/or taking roots.
5. The _
are {1, 2, 3, ...}.
6. The _
are {0, 1, 2, 3,...}.
7. The _
are {...-3, -2, -1,0, 1, 2, 3, ...}.
8. The number V5 is a(n) _
9. The number is a(n) _
10. The opposite of a is _

Word bank is in the photo

So confused right here i need it to be more clearer

Ok here we go ..there are plenty of ways to solve such math problems but we will go for the smartest and easiest ..5x+2y=7  -2x+6y=9we rearrange them into the following ..by multiplying the 1st equation by 2 it becomes 10x + 4y = 14we rearrange it and so it becomes 10x = 14 - 4yas for the second equation we multiply it by 5 and rearrange it so it becomes as to the following ..-10x + 30y = 45rearranging so 10x = 30y -45now 10x equals both 14 - 4y and 30y -45so   14 - 4y = 30y -4531 = 26yy= 31/26 = 1.19 or around 1.2so by now we can calculate x easily as  -2x+6y=9so 2x = 6y -9 = 6 * 31/26 - 9 = -1.84  then x = - 0.92 or around -0.9best luck!