If x = -13, just plug -13 in for x in the equation, simplify, isolate the variable, and solve.
-4x + 5y = 12
-4(-13) + 5y = 12
-4 • -13 = 52
52 + 5y = 12
12 - 52 = -40
5y = -40
-40 / 5 = -8
y = -8
So when x is -13, y is -8.
Check the solution:
-4x + 5y = 12
-4(-13) + 5(-8) = 12
52 + (-40) = 12
52 - 40 = 12
12 = 12
It works, so this is correct.
You just divide each side of the equation by three so you'll get
Edit: I believe you wrote the equation wrongly. If it was
, then you cubic root both sides and get
.
Answer:
June has 40 Sweets
Step-by-step explanation:
The computation of the sweets does June have is as follows:
Let us assume June have x sweets
As per the question
May has 3x ÷ 4 sweets
April has (3x ÷ 4 × 2 ÷ 3) = x ÷ 2 sweets
And, the total sweets is 90
Now
x ÷ 2 + 3x ÷ 4 + x = 90
9x = 360
x = 40
Therefore June has 40 Sweets
Answer:
Step-by-step explanation:
make ? = y
4x-2+4(2x+y)=12x +14
distribute
4x-2+8x+4y=12x+14
group like terms
12x-2+4y=12x+14
the 12x cancels out on both sides
-2+4y=14
4y= 12
y=3
? = 3
Answer:
oop
Step-by-step explanation:
