Answer:
74+32x
Step-by-step explanation:
2+8(9+4x)
2+(72+32x)
74+32x
Answer:
B. Step 2
Step-by-step explanation:
2= −1 is incorrect. -4 - 3 is not -1, it's -7.
Hope this helps!
Answer:
Number of ducks = 37
Number of pigs = 18
Step-by-step explanation:
Let,
x be the number of ducks
y be the number of pigs
According to given statement;
x+y=55 Eqn 1
2x+4y=146 Eqn 2 (As ducks will have 2 legs and pigs will have 4)
Multiplying Eqn 1 by 2
2(x+y=55)
2x+2y=110 Eqn 3
Subtracting Eqn 3 from Eqn 2
(2x+4y)-(2x+2y)=146-110
2x+4y-2x-2y=36
2y=36
Dividing both sides by 2
Putting y=18 in Eqn 1
x+18=55
x = 55-18
x = 37
Hence,
Number of ducks = 37
Number of pigs = 18
Answer:
Step-by-step explanation:
In first step, we just open the brackets and you should know that ++ = + and +- = - and -- = + and -+ is also equal to -
after opening the brackets we combine terms which are a like
then any order, any grouping you can write the answer in any order and you can also take - common and it will be written as
-(5p-7a+6)
if you multiply the minus it will be the same.