9(2w−y)=21w−9y
First you multiply the numbers in the parenthesis by 9
subtract. 21w-18w=3w
add. -9y+9y=0
divide.
Final answer is 0.
Answer:
first open the bracket by multiplying 28 by 4 which is equal to 112, then add it to 18 which be equal to 130 which is the final answer
Guinea pig (p) = 4 years old
Giraffe (g) = 10 years old
Tiger (t) = 16 years old
P = g-6
T = 4p
30 = g+g-6+(4(g-6))
30 = 2g-6+4g-24
30 = 6g-30
+30 +30
60 = 6g
6 6
10 = g
P = 10-6
P = 4
T = 4(4)
T = 16
You solve this problem via PEMDAS (Parentheses Exponents Multiplication Division Addition Subtraction.)
To start you simplify everything inside parentheses.
9+3*5+5^2
Then you simplify the exponents.
9+3*5+25
Next, you simplify the multiplication signs.
9+15+25
Then you simplify all the addition signs from left to right.
24+25
49
