X=-1 and y=3
To solve this, because y is equal to 2x+5, you can substitute 2x+5 into the bottom equation for y.
You now have 3x - (2x + 5) =-6
This can be solved like a normal equation. Multiply each term in the parenthesis by -1.
3x - 2x - 5 = -6
Subtract 2x from 3x
x - 5 = -6
Add 5 to both sides
x=-1
Now you can solve for y by plugging -1 in for x in either equation. Im going to use the top one.
y= 2(-1)+5
y= -2+5
y=3
You can check your answer by plugging in the values for x and y into both equations and making sure both sides equal each other.
Answer:
y = 36
Step-by-step explanation:
Everything in x-column is multiplied by 2, so everything in y-column is divided by 2 as per the inverse function.
=> 72/2
=> 36
Answer:
x<12
Step-by-step explanation:
Let's solve your inequality step-by-step.
−3<
x/
−4
Step 1: Simplify both sides of the inequality.
−3<
−1/
4
x
Step 2: Flip the equation.
−1/
4
x>−3
Step 3: Multiply both sides by 4/(-1).
(
4/
−1
)*(
−1/
4
x)>(
4
/−1
)*(−3)
x<12
Answer:
x<12
Answer:
Not sure if I'm correct can someone please answer it!!!
Step-by-step explanation:
Its correct because I've done this
Answer:49.70
Step-by-step explanation:
