Answer:
29
Step-by-step explanation:
(5k-3) + (9+k) = 180
6k + 6 = 180
6k = 174
k = 29
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21 because it is being multiplied
The sum of the left side of these two equations is equal to the same of the right side is these two equations
4x+8y + (-4x+2y) = 20 + 30
10y =50 ( x is eliminated)
y=5
Take this into the second equation
-4x +2y = 30
-4x + 2*5 = 30
x=-5
So x=-5
y=5
Answer:
60
Step-by-step explanation:
