Question

1. Find the value of the expression 3x + 2x + 7

2. 8xy + 5x

3. Find the value of the expression '-9x' if x = -3

4. write an expression whose value is equal to -9, when x = -3​

Answer 1

Answer:

3x+2x+7

= 5x + 7

8xy+5x

No common variables so change ..

-9x

= -9 × -3

= + 27

x= -3

-3 +(-6)

= -3 -6

= -9

hope it helps u

regards