2 years ago

3 (5x + 7) = 75 what is x?

Mathematics

2 answers:

garik1379 [7]2 years ago

8 0

Answer:

3 (5x+7) = 75

15x + 21 = 75

15x + 21 - 21 = 75 - 21

15x = 54

x = 3.6

Step-by-step explanation:

Elodia [21]2 years ago

3 0

Answer:

x = 3.6

Step-by-step explanation:

divide both sides by 3

5 x + 7 = 25

subtract 7 from both sides

5 x = 18

divide both sides by 5

x = 3.6

You might be interested in

You received a gift in the mail. The length of the box is 12 inches, the width is 8

Softa [21]

Answer: 296 or 592

Step-by-step explanation:

4 0

3 years ago

I need help please thanks for helping

tresset_1 [31]

I cant see on my
computer sorry<span />

3 0

3 years ago

Read 2 more answers

How to solve the new amount between $25 and 300%?

pav-90 [236]

Theres one way i know its to divide 25 into 300 and the answer is 12

6 0

3 years ago

What's one of the factors of x² - x – 6 ?

mr Goodwill [35]

$x^2-x-6=x^2+2x-3x-6=x(x+2)-3(x+2)\\\\=\boxed{(x+2)(x-3)}$

The factors are: (x+2) and (x-3).

$x^2-x-6=x^2+\underbrace{2x-3x}_{=-x}-6\\\\=\underbrace{x\cdot\boxed{x}}_{=x^2}+\underbrace{2\cdot\boxed{x}}_{=2x}+\underbrace{\fbox{-3}\cdot x}_{=-3x}+\underbrace{\fbox{-3}\cdot2}_{=-6}=\boxed{x}(x+2)+\fbox{-3}(x+2)\\\\=(x+2)(x+(-3))=\boxed{(x+2)(x-3)}$

8 0

3 years ago

HHHHHEEEEEEEEEEEEEEELLLLLLLLLLLPPPPPP

Sati [7]

It’s the first one . multiply 10.50 by 3 and get 31.50

3 0

3 years ago

Read 2 more answers