Y = x - 7
2x + y = 8
2x + (x - 7) = 8
2x + x - 7 = 8
3x - 7 = 8
<u> + 7 + 7</u>
<u>3x</u> = <u>15</u>
3 3
x = 5
y = x - 7
y = 5 - 7
y = -2
(x, y) = (5, -2)
Rectangle Area = length • width
5x • (x + 2) = area
(5x^2 + 10x) is the area, with no further ways to simplify.
Answer:
x= 4 & -4
Step-by-step explanation:
Subtract 90 to the other side. 112 -90= 20
Answer:
x = 1
Step-by-step explanation:
x + 8 = 9
=> x = 9 - 8
=> x = 1