You want to use the addition property, so you need to ADD each term. Just change the minuses to pluses, making sure you keep the negative with the number
5x-8x-7y+y =
5x + -8x + -7y +y
15/50 * 2/2 = 30/100
Now you can easily see decimal and percent form
Decimal: 0.30
Percent: 30 percent
Answer:
Yup, 27 is correct!
Step-by-step explanation:
5(7)-8
= 35 - 8
= 27
(16x^2+4x-4x-1)-3=15x^2
16x^2-1-3=15x^2
16x^2-4=15x^2
X^2=4
X=+or-2