Which expression is equivalent to 3x – 5?

Mathematics

2 answers:

igomit [66]3 years ago

7 0

Answer:

2x-4-1+x

Step-by-step explanation:

Just answerd the quistion

Scrat [10]3 years ago

6 0

the equation 2x-4-1+x would be the answer

Because 2x+x = 3x and -4-1 = 5, the result would be 3x-5

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Dahasolnce [82]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

HELP!! Create a system of equations with the solution (-4, 1)

Delvig [45]

9514 1404 393

Answer:

x -y = -5

3x +y = -11

Step-by-step explanation:

We assume you want two linear equations. Since you know a point on each line, the only thing you need to choose is the slope of the two lines through that point. We can make the slopes be +1 and -3, for example. Then the point-slope equations are ...

y -k = m(x -h) . . . . . . line with slope m through point (h, k)

y -1 = +1(x +4)

y -1 = -3(x +4)

We can use these equations "as is", or put them in whatever form you like. I personally prefer "standard form:" ax+by=c.

First equation:

y -1 = x +4 . . . . . . eliminate parentheses

-5 = x -y . . . . . . . keep positive x term, put x and y together, separate from the constant

x - y = -5 . . . . . . standard form

Second equation:

y -1 = -3x -12 . . . . eliminate parentheses

3x +y = -11 . . . . . . add 3x+1 to both sides

A system of equations with solution (-4, 1) is ...