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3 years ago

What is a correct first step for solving this equation x+7=2x+5-4x

Mathematics

2 answers:

SOVA2 [1]3 years ago

8 0

Answer:

2x+4x=6x

Step-by-step explanation:

lesya692 [45]3 years ago

6 0

Answer:

Combing like terms.

Step-by-step explanation:

If there are like terms with a variable, you should combine them to make the problem more easier.

$2x-4x = -2x$

$x + 7=-2x+5$

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Question is down below please help! It’s a quiz

bulgar [2K]

To find the y-intercept, we set x=0 and solve for y.

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3 years ago

Answer correct you get brainliest answer

zloy xaker [14]

Answer:

$y = {x}^{2} - 2$

Or if you want with the value of h too.

$y = {(x - 0)}^{2} - 2$

Step-by-step explanation:

$y = a {(x - h)}^{2} + k$

Find the value of h and k by using the formula.

$h = - \frac{b}{2a} \\ k = \frac{4ac - {b}^{2} }{4a}$

From y = x²-2

$a = 1 \\ b = 0 \\ c = - 2$

Substitute these values in the formula.

$h = - \frac{0}{2(1)} \\ h = 0$

Therefore, h = 0.

$k = \frac{4(1)( - 2) - {0}^{2} }{4(1)} \\ k = \frac{ - 8}{4} \\ k = - 2$

Therefore, k = - 2.

From the vertex form, the vertex is at (h, k) = (0,-2). Substitute h = 0, a = 1 and k = -2 in the equation.

$y = a {(x - h)}^{2} + k \\ y = 1 {(x - 0)}^{2} - 2 \\ y = {(x)}^{2} - 2 \\ y = {x}^{2} - 2$

These type of equation where b = 0 can also be both standard and vertex form.

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3 years ago

Is 2.58, 2.6,2 5/8,2 2/3 in order from least to greatest

lukranit [14]

Yes it is.

2.58, 2.6, 2 5/8 can be converted into 2.625, and 2 2/3 can be converted into 2.66 repeating.

2.58, 2.6, 2.625, 2.66 for a recap.

7 0

3 years ago

Read 2 more answers

If five times the measure of an angle is decreased by 30, the result is the same as when two times the measure of the angle is i

Serhud [2]

Answer:

Step-by-step explanation:

Let "a" represent the measure of the angle. Then ...

5a -30 = 2a +18

3a = 48 . . . . . . . add 30-2a

a = 16 . . . . . . . . . divide by 3

An angel is beyond measure, but this angle has measure 16.

4 0

3 years ago

Papessa [141]

.16666667 is your answer u have to round up the last number tho

6 0

3 years ago