All categories

3 years ago

Combine like terms. 2z+9-z+3

Mathematics

2 answers:

MaRussiya [10]3 years ago

8 0

Answer:

z + 12

Step-by-step explanation:

Combine like terms (terms with the same amount of variables).

2z + 9 - z + 3

(2z - z) + (9 + 3)

z + 12

z + 12 is your answer.

steposvetlana [31]3 years ago

6 0

Answer:

z + 12

Step-by-step explanation:

This is the answer because:

1) Our like terms are 2z and z and 9 and 3

2) First, we should add 9 and 3 because they are like terms and there is a + sign in front of the 3 which equals to 12

3) Then, subtract 2z and z because they are like terms and there is a - sign in front of the z which equals to z

4) Finally, we are left with z + 12. This expression is simplified because there is no more like terms

Hope this helps!

You might be interested in

Round these numbers to the nearest ten and 100 for brainlies 50 points

Dmitrij [34]

Answer:

1. 650, 700 2. 840, 800 3. 370, 400 4. 80, 100 5. 620, 600 6. 250, 200 7. 970, 1,000 8. 330, 300 9. 450, 400 10. 210, 200 11. 100, 100 12. 710, 700

Step-by-step explanation:

4 0

2 years ago

Which is the approximate measure of this angle? a. 30° b. 80° c. 120° d. 150°?

Simora [160]

I think the answer is D 150 degrees

7 0

2 years ago

An equation _____ has one solution. always sometimes never

alina1380 [7]

I think the correct answer from the choices listed above is the second option. An equation sometimes has one solution. A system of equation can have one solution when the equations intersect at one point. Equations can also have two or more number of solutions.

8 0

3 years ago

Two isosceles triangles are shown above. If b = 180-4a and a=35, What is the value of c?

Ymorist [56]

Answer:

a=35 given

b=40

c=110

I couldn't complete see c. Please look at the picture to see what I assumed it to be.

Step-by-step explanation:

Hmmm... I guess a and b are not vertical.

We are given b=180-4a and a=35 so b=180-4(35)=180-140=40.

So b=40.

Isosceles triangles always have congruent base angles. So let's call both of the base angles in the bottom triangle x.

That means x+x+40=180.

We need to solve this for x.

Combine like terms:

2x+40=180

Subtract 40 on both sides:

2x=140

Divide both sides by 2:

x=140/2

Simplify:

x=70

So I'm assuming that c and it's adjacent angle are sitting on a straightedge together which means 70+c=180.

70+c=180

Subtract 70 on both sides:

c=180-70

Simplify:

c=110

4 0

3 years ago

For the graph x = 12 find the slope of a line that is perpendicular to it and the slope of a line parallel to it.

il63 [147K]

The slope of a line perpendicular to this is (y=a number) 0. That's because the change in the x would be 0, because it would be y=3 or something like that.

The slope of a line parallel to this is undefined. That's because it has the same slope as this line, and this line has a slope of undefined.

3 0

3 years ago