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Answer:
y=2x+1
Step-by-step explanation:
If you're trying to solve for y
-2y = 8
Divide -2 to both sides

Cancel out the -2 on the left, Divide the -2 to the 8 on the right so
y = -4
Answer:
$1.75 because if u add $3.50 + $1.75 u get $5.25 subtract that from $7.00 u get $1.75
Answer:
6.25 litres
Step-by-step explanation:
ratio 1:4
25/4 = 6.25
4 * 6.25 = 25
1 * 6.25 = 6.25
= 6.25 litres of concentrate