Question

Simplify the following expression.
x − 4y + 5z − 3x − y + 2z = ?

2x − 5y + 7z

−2x − 5y − 7z

−2x − 5y + 7z

−2x −5y + 3z

Answer 1

add like terms

eg x - 3x = -2x

Answer 2

huh?

Answer 3

iits a subtract but u can look upon it as add

x + (-3x) = -2x

Answer 4

x − 4y + 5z − 3x − y + 2z
Re-arrange them and then solve
x-3x-4y-y+5z+2z
-2x-5y+7z :)

Answer 5

It's option number C :)

Answer 6

okay thanks

Answer 7

Your welcome :)

Answer 8

@xoya Evaluate: 16 − 10 ÷ 2 + 3

6

8

14

0

Answer 9

i got 16 is that correct

Answer 10

the rule here is to work out the division first
then work from left to right

Answer 11

i mean i got 14 is that correct

Answer 12

16 - 10 / 2 + 3
= 16 - 5 - 3
= 11 - 3 = 8

Answer 13

following the following rule

PEDMAS

in order of priority

parentheses, exponent, divide multiply add subtract

Answer 14

isn't it 16 - 5 +3

Answer 15

so you see how i did the division first?

Answer 16

so then 11 + 3

then that will be 14

Answer 17

oh sorry u r right
yes 14

Answer 18

Bob's Car Rentals charges a flat rate of $35 per day plus $3.50 per mile. If the number of miles is represented by "m", which algebraic expression represents the overall rate for the day using "m"?

38.50m

35m + 3.50

35 + 3.50m

31.50m

Answer 19

@xoya

Answer 20

@cwrw238