Answer:
6. 4
7. 40
8. 10
9. 4
10. 21
Step-by-step explanation:
-3x+13=16
Move +13 to the other side. Sign changes from +13 to -13.
-3x+13-13=16-13
-3x=16-13
-3x=3
Divide by -3 for both sides.
-3/-3x=3/-3
Cross out -3 and -3, divide by -3, then becomes 1*1*x=x
x=-1
Answer: x=-1
Answer:

Step-by-step explanation:
<em>The question in English is</em>
If 4x= 5/6y then 5y=
we have

Solve for 5y
Multiply both sides by 6

Simplify

Rewrite

Answer:
x = -5
Step-by-step explanation:
First distribute the 5 on the right side of the equation.
10x - 35 = 15x - 10
Then subtract 10x on each side
-35 = 5x - 10
Then add 10 on each side
-25 = 5x
Divide 5 on each side to get x
-25 / 5 = -5
I hope this helps! :)
Answer:
p=2l+2w
p=2*9 +2*4
18+8
p=26
Step-by-step explanation:
idk if this is right but that's what i got