All categories

3 years ago

Solve the equation: -4x - 12 = 8

Mathematics

2 answers:

trapecia [35]3 years ago

8 0

-4x - 12 = 8

+ 12 +12

-4x = 20

-4 -4

x = -5

To ensure that x equals -5, let's substitute the negative integer with x.

-4 x -5 - 12 = 8

-20 - 12 = 8

8 = 8

Therefore, the answer is x = -5 because we confirmed our answer by substituting x with -5 and solving the equation and got the both sides of the equation equal.

boyakko [2]3 years ago

5 0

-4x-12=8
Add12 to both sides
-4x= 20
Divide both sides by -4
X= -5

You might be interested in

Manny has 48 feet of wood. He wants to use all of it to create a border around a garden. The equation 2 l plus 2 w equals 48 can

Lelu [443]

Answer:

$2l + 2w = 48$

if garden is 15' long

$2(15) + 2w = 48 \\ 30 + 2w = 48 \\ 30 - 30 + 2w = 48 - 30 \\ 2w = 18 \\ \frac{2w}{2} = \frac{18}{2} \\ w = 9 \: feet \: wide$

7 0

3 years ago

The measure of ABD is (0.18x + 67) degrees and the measure of CBD is (0.07 + 48) degrees. Find the value of X

LUCKY_DIMON [66]

Answer:

See Explanation

Step-by-step explanation:

Given

$ABD = 0.18x +67$

$CBD = 0.07x + 48$

Required

Find x

The question is incomplete as the relationship between ABD and CBD is not stated.

Assume ABD = CBD

The solution is:

$0.18x + 67 = 0.07x + 48$

Collect like terms

$0.18x - 0.07x= - 67 + 48$

$0.11x= -19$

Solve for x

$x = -\frac{19}{0.11}$

$x = -172.72$

Assume ABD and CBD are supplementary

The solution is:

$ABD + CBD=180$

$0.18x + 67 + 0.07x + 48 = 180$

Collect like terms

$0.18x + 0.07x = - 48 - 67 + 180$

$0.25x = 65$

Solve for x

$x = \frac{65}{0.25}$

$x = 260$

Assume ABD and CBD are complementary

The solution is:

$ABD + CBD=90$

$0.18x + 67 + 0.07x + 48 = 90$

Collect like terms

$0.18x + 0.07x = - 48 - 67 + 90$

$0.25x = -25$

Solve for x

$x = \frac{-25}{0.25}$

$x = -100$

3 0

3 years ago

Add. Express your answer as a fraction. Do not include spaces in your answer. 5/1/4+15.5

MAVERICK [17]

Answer:

The answer is 20/3/4(without spaces) or 20 3/4.

Step-by-step explanation:

7 0

3 years ago

Eliminate the parameter in the equations x =t Superscript one-half and y = t – 4. How can the rectangular equation be described?

miskamm [114]

Answer:

A. CUBIC

Step-by-step explanation:

I got it right on edg21

5 0

3 years ago

Read 2 more answers

The graph shows the total numbet of inches of snow that fell in a town in February over ten year period. What is the approximate

elena-14-01-66 [18.8K]

Answer:

0.6

Step-by-step explanation:

7 0

3 years ago