Solve the following linear equation. Explain every step in the process.-4x + 2(3x – 1) - 12 = 3x + 30
Answers
Answer:
44/7
Step-by-step explanation:
First, carry out the indicated multiplication, using the Distributive Property of Multiplication:
-4x + 2(3x – 1) - 12 = 3x + 30 becomes:
-4x + 6x – 2 - 12 = 3x + 30
Next, combine all the x terms and all the constants. We get:
10x - 14 = 3x + 30, or 7x = 44
Dividing both sides by 7 yields x = 44/7.
Answer:
X= -44
Step-by-step explanation:
Multiply parenthesis by 2. Distribute 2 through the parenthesis. Collect like terms. Calculate the difference. Move variable to the left side and change it's sign. Move constant to the right side and change it's sign. Collect like terms. Add the numbers. Change the signs on both sides of the equation. Then you'll get X= -44
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Answers
Factorise:
We choose 2 numbers that add to -18, and multiply to 144, these numbers are +6 and -24, we put it into the brackets:
(x + 6)(x - 24) <- x = the interted sign of the numbers inside the brackets
E.g. +6 turns into -6 and -24 turns into +24
x must = -6 or = +24
(x^2 - 18x - 144) = 0
What two factors add up to equal -18 AND multiply to equal -144?
For a product to be a negative, one of the factors have to be a positive, and the other has to be a negative (positive times a negative equals a negative).
And now that we know that, we know that the negative number has to be larger than the positive because of the -18.
What two factors add up to equal -18 AND multiply to equal -144?
Negative 24 and positive 6.
(x - 24)(x + 6)
Answers
Answers
we notice that y is negative x so therefor D is the correct answer
Now that (0,0) is the origin, it is also a point where the line lies. (-1, 1) is also a point where the line lies(in Quadrant II). And (1, -1) is the total opposite of (-1, 1).
It is in Quadrant IIII, but it is also on where the line lies
y=2x-15
and y=5x
Answers
3x = -15
x = -5
substitute x = -5 into one of your equations
so y = 5x becomes y = 5 x -5
y= -25
x=-5 and y=-25
IDK the other two
Answers
-3x - 6 + (-1)
-3x - 6 - 1
-3x -7
I hope it helps
Answer:
-3x -7
Step-by-step explanation:
The following inequality models the relationship among the quantities in this scenario
where x represents the number of songs Aaron can afford to download:
25 ≥ 0.99 x + 3.99
Show all work to solve the inequality
Answers
Subtract 3.99 to both sides:
21.01 ≥ 0.99x
Divide 0.99 to both sides:
21.22 ≥ x
x ≤ 21.22
So he can buy less than or equal to 21 songs.
21.01/ 0.99 is 21.222 bar, so round it to the nearest ones place, which is 21.
Check: