Answer:
x = -8, y = 6
Step-by-step explanation:
x + 2y = 4 ------(1)
x + y = - 2
y = - x - 2 ----------(2)
Substitute y in (1)
x + 2(- x - 2) = 4
x - 2x - 4 = 4
- x = 4 + 4
x = -8
Substitute x in (2)
y = - (- 8) - 2 = 8 - 2 = 6
Answer:
Improper fraction =871/20
Mixed fraction =43 11/20
Step-by-step explanation:
The (3, 1/5) would be a solution while the (-1,1) wouldn’t because when you write this equation in the slope intercept form which is y = 3/5x - 8/5
1/5 = 3/5 (3) - 8/5
would end up with 1/5 = 1/5 which is write
While,
1 = 3/5 (-1) - 8/5
Would end up with
1 = 11/5 which is wrong
Answer:
x+2a=12+ax-6a
Step-by-step explanation:
collect liked terms:
x+2a=12+ax-6a
2a-ax+6a=12-x
factorize a on the left hand side:
a(2-x+6)=12-x
divide both sides by (2-x+6) :
a(2-x+6)/(2-x+6)= 12-x/(2-x+6)
a= 12-x
____
(2-x+6)
