x = -2
y = 1
let's multiply second equation by 4 to get a common coefficient of y variable.
16x-8y=-40
add the equations
3×+8y=2
16x-8y=-40
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3x+16x = -38
19x = -38
x = -2
substitute x
3×-2 + 8y = 2
-6 + 8y = 2
8y = 2+6
y = 1
check the answer
-6+8 = 2
-8-2= -20
Distance to the star in light years = 3 * 0.62 * 9.5 * 10^12 = 1.767 * 10^13 miles
dividng this by 17,000 gives 1.039411765 * 10^9 hours
Answer: $2.00x + $2.50y = $20.00
Step-by-step explanation:
d. you add up all the sides. opposite sides are equal. the answer is d. 36
Answer:
D. -8
Step-by-step explanation:
0-4=-4
0-4=-4
-4 + -4 = -8
