Y = – x – 6 y = x – 4 solve the system of equations using substition. HELP NEEDED IMMEDITLY!!!!!!!!
2 answers:
Answer:
x=-1 y= -5
Step-by-step explanation:
y = – x – 6
y = x – 4
Substitute into y = -x-6 into the second equation
y =x-4
-x-6 = x-4
Add x to each side
-x-6+x =x-4+x
-6 =2x-4
Add 4 to each side
-6+4 =2x-4+4
-2 = 2x
Divide by 2
-2/2 =2x/2
-1 = x
Now find y
y =-x-6
y = -(-1) -6
y =1-6
y = -5
Answer:
x = -1
y = -5
Step-by-step explanation:
Given:
We'd take one of the equations above and substitute it with the y variable:
x - 4 = -x - 6
-x is smaller, so we add x in both sides:
2x - 4 = -6
Add 4 in both sides:
2x = -2
Divide 2 in both sides:
x = -1
Solve for y
y -(-1) - 6 = -5
y = -5
Our answer is x = -1, y = -5
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