2x + y = 10
5x - y = 18
7x = 28
x = 4
2(4) + y = 10
8 + y = 10
y = 2
(4,2)
Answer:
you would use 85 to find angle 4, because they would add up to 180, so you would subract 85 from 180 to get angle 4
Step-by-step explanation:
Answer:
Florida
Step-by-step explanation:
im yupp ty of course and the fact is the fact is the
Answer:

Step-by-step explanation:
Given

Required
Simplify
Start by collecting like terms

Simplify like terms

Answer:
x^2 - 6x - 7
Step-by-step explanation:
Roots, 7 and -1
x = 7 is the same as x - 7 = 0
x = -1 is the same as x + 1 = 0
multiply (x-7) by (x + 1)
x(x -7) +1(x - 7)
x^2 -7x + x - 7
x^2 - 6x - 7