Answer:
x=3 and x=-1.25
Step-by-step explanation:
4x^2-7x=15
subtract 15 from each side:
4x^2-7x-15=0
factor (trying different numbers that the sum is 7 and the quotient is 15)
(2x-6 )(2x+2.5 )=0
2x-6=0 add 6 to each side
2x=6
x=3
2x+2.5=0 subtract 2.5 from each side
2x=-2.5
x=-1.25
Let's solve your equation step-by-step.
1/4x - 2 = -6 + 5/12x
Step 1: Subtract 5/12x from both sides.
So now the problem is: -1/6x - 2 = -6
Step 2: Add 2 to both sides
So now the problem is -1/6x = -4
Step 3: Multiply -6 to both sides
Now you have x alone and 24
Answer: x = 24
Answer:
5
Step-by-step explanation:
B. is the answer if you look closely
First you have to get the variable to one side.
To do this you have to subtract 2/3x from both sides.
4/3x-2/3x=2/3x
Now you have:
1/6=2/3x
Divide by 2/3
1/6÷2/3=1/6×3/2=3/12=1/4
Your answer is:
X=1/4
