First off, you need to have your ys on the same side. Here's how to do it:
4y + 15 = -5y + 9
4y + 5y = 9 - 15 (once a number goes to the other side, it changes its sign)
9y = -6
y = -6/9
y = -2/3
The correct answer is B. -2/3
Hi!
500 grams = 0,5 kilograms => 1 kg = 1000 grams = 2 * 500 grams
For 1 kg we need to buy 2 bags of 500 grams.
For 56kg we need to buy x bags of 500 grams.
x = (56*2)/1 = 112
The answer is : You should buy 112 bags of 500 grams, because 112 * 500g = 65000g = 65 kg.
Hope this helps!
Answer:
first one, put value of x= -3 and y = 0
second one, pit vale of x=7 and y= -7
Step-by-step explanation:
first one,
-14(-3) -20(0) =42
or, 42-0 = 42
or, 42 = 42
proved
second one,
-14(7) -20(-7) = 42
or, -98 + 140=42
or, 42 = 42
proved
Answer: 15 + X= or X + 15=
in decimal form it is 45.2
in exact form it is 32 squareroot 2
