Answer is #3
add up all the x’s
The first step to solving this is to multiply both sides of the equation by 3
8 + 10y = 9y - 12
now move the variable to the left side and change its sign
8 + 10y - 9y = -12
move the constant to the right side and change its sign
10y - 9y = -12 - 8
collect the like terms for y
y = -12 - 8 (it equals 1 when you subtract 10 from 9 which is the same is simply saying "y")
calculate the difference on the other side of the equals sign
y = -20
this means that the correct answer to your question is -20.
let me know if you have any further questions
:)
To find the inverse, interchange the variables and solve for y.
f^−1(x)=−25+5x/2
3*x
3*2
3x+6
5*x
5*-8
5x-40
Story short the answer is 25
Answer:
3.9375
Step-by-step explanation:
