3 years ago

7 + 7x - (2x) + 3 if x = -4

Mathematics

2 answers:

frutty [35]3 years ago

4 0

Answer:

-10

Step-by-step explanation:

7 + 7(-4) - (2(-4)) + 3

7 - 28 - (-8)+3

7 - 28 +8 +3

= -10

Mekhanik [1.2K]3 years ago

4 0

Answer:

- 10

Step-by-step explanation:

7 + 7x - (2x) + 3 =
7 + 7x - 2x + 3 =
10 + 5x =
10 + 5*(- 4) = Substitute x = - 4
10 - 20 =
- 10

You might be interested in

Last summer, Brianna planted 2 plants

Volgvan

Answer: how many square feet are there? multiple each square foot by 2

Step-by-step explanation:

4 0

3 years ago

if a class of 20 students 40% are boys. twenty-five percent often boys and 50% of the girls wear glasses. how many students wear

shtirl [24]

2 boys and 6 girls wear glasses, so 8 students wear glasses

7 0

3 years ago

What value of x makes this equation true , use numerals instead of words.<br> -2x+3=-15

uysha [10]

Answer:

x = 9

Step-by-step explanation:

-2x + 3 = -15

-2x = -18

x = 9

7 0

2 years ago

Read 2 more answers

PLEASEEEEE HELP WITH THIS??!!!!<br><br> According to the diagram, what is the altitude?

snow_tiger [21]

X^2 + 400^2 = 500^2
solve for x.
x^2=25,000-16,000
x^2= 9,000
x=
$x = \sqrt{9000}$
x= 94.86m

5 0

3 years ago

Read 2 more answers

What are two different ways of factoring:

dolphi86 [110]

Answer: -2(f + 5)
Explanation:

3 0

3 years ago

Read 2 more answers