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egoroff_w [7]
3 years ago
15

Which is the best first step when solving the following system of equations? x + y = 3. 4 x minus y = 7. Multiply the first equa

tion by 4. Add the first equation to the second equation. Multiply the second equation by Negative 1. Subtract the second equation from the first equation.
Mathematics
2 answers:
Gala2k [10]3 years ago
8 0

Answer:

The other guy is wrong its c

Step-by-step explanation:

Kryger [21]3 years ago
6 0

Answer:

Multiply the first equation by 4.

Step-by-step explanation:

4(x+y=3) which gives

4x+4y=12

and

4x-y=7

Then subtract the two equations and the x variable will be eliminated.

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PLEASE HELP!! WILL MARK BRAINLIEST ANSWER!!
pychu [463]

Answer:

F(x) = 17x^2 - 13x + 2

Step-by-step explanation:

8 0
3 years ago
Graph a line with a slope of -3 that contains the point (4, -2)
Crank

Answer:

Step-by-step explanation:

Given that

Slope m=-3

A point (x, y)=(4,-2)

Equation of a line can generally be written as

y=mx+c

Where, m is the slope

And c is the intercept on y-axis

Since we are given m=-3

Then, y=mx+c becomes

y=-3x+c

To get c, let substitute the point given, i.e x=4 and y=-2

y=-3x+c

-2=-3(4)+c

-2=-12+c

-2+12=c

c=-2+12

c=10

y=mx+c, then m=-3 and c=10

Then, the equation the line becomes y = -3x + 10

This is the required line equation

5 0
3 years ago
The equation v/2 -21=-15 is solved in several steps below.
Arada [10]

Answer:

V/2 - 21 = -15

V/2 - 21 + 21 = -15 + 21

V/2 + 0 = 6

V/2 * 2 = 6 * 2

V = 12

8 0
3 years ago
What is the slope of the line graphed below (3 5) (0 -1)
Fittoniya [83]

Answer:

m = -15

Hope this helps. :  )

3 0
3 years ago
Find the value of X in the measure of angle 2.
Oksana_A [137]

Answer:

x = 11, ∠ 2 = 146°

Step-by-step explanation:

∠ 2 and 146° are corresponding angles and are congruent, then

∠ 2 = 146°

Thus

13x + 3 = 146 ( subtract 3 from both sides )

13x = 143 ( divide both sides by 13 )

x = 11

5 0
3 years ago
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