All categories

3 years ago

Write 2 equations needed to solve this problem

Mathematics

1 answer:

Rus_ich [418]3 years ago

6 0

Answer:

x = - 8, x = - 6

Step-by-step explanation:

Given

8 | x + 7 | - 3 = 5 ( add 3 to both sides )

8 | x + 7 | = 8 ( divide both sides by 8 )

| x + 7 | = 1

The expression inside the bars can be positive or negative, thus

x + 7 = 1 or - (x + 7) = 1 ← 2 equations to be solved

x + 7 = 1 ( subtract 7 from both sides )

x = - 6

-(x + 7) = 1

- x - 7 = 1 ( add 7 to both sides )

- x = 8 ( multiply both sides by - 1 )

x = - 8

You might be interested in

A community swimming pool has a deep end and a shallow end. The volume of water

marysya [2.9K]

Answer:

Step-by-step explanation:

6 0

4 years ago

Solve for x if 10/4x-3 = 2

Marysya12 [62]

Answer:

We need to solve this equation:

$\frac{10}{4x}-3=2$

We pass -3 to the right summing:

$\frac{10}{4x} = 2 + 3$

$\frac{10}{4x}=5$

We pass the 4x that is dividing to the right multiplying:

$10 = 5*4x$

$10=20x$

We pass the 20 of the right to the left dividing:

$\frac{10}{20}=x$

$x=\frac{1}{2}$

Now, we know $x=\frac{1}{2}$ , so we can verify:

$\frac{10}{4*\frac{1}{2}}-3 = 2$

$\frac{10}{2}-3=2$

$5 - 3 = 2$ TRUE

3 0

3 years ago

Read 2 more answers

What tactic did Filipino insurgents use to undermine American power?

Aliun [14]

The answer for this question would be C) Guerilla warfare or the third option.

6 0

3 years ago

2.4/1.8=7.2/k <br> What does K equal

Furkat [3]

Answer:

k = 5.4

Step-by-step explanation:

I cross-multiplied then divided 12.96 by 2.4.

Can I get brainliest

7 0

3 years ago

Help me PLZZZZZZ I will mark BRAINLEIST

vfiekz [6]

Answer:

10.8

Step-by-step explanation:

becaue you need to mutiply all sides

4 0

3 years ago