Answer:
x= {0, 7}
Step-by-step explanation:
Answer:
Step-by-step explanation:
-5x-4y=-4 ...(1)
25x+ 20y = 20 ....(2)
multiply (1) by -5 you have : 25x+ 20y = 20 ....(2) same equation , same line
so : The system has infinitely solutions.
Answer:
3
Step-by-step explanation:
5(2x + 1) = 35
10x + 5 = 35
10x = 30
x = 3
Work shown above! y = 148
Answer:
$24.75
Step-by-step explanation:
Let's first add up all the costs:

Since they split it, let's divide that by 2:

Thus, they both spent $24.75.