All categories

3 years ago

6. Solve for x. 10x - 4 = +(8x + 14)

Mathematics

2 answers:

Nuetrik [128]3 years ago

3 0

Simplify brackets

10x - 4 = 8x + 14

Add 4 to both sides

10x = 8x + 14 + 4

Simplify 8x + 14 + 4 to 8x + 18

10x = 8x + 18

Subtract 8x from both sides

10x - 8x = 18

Simplify 10x - 8x to 2x

2x = 18

Divide both sides by 2

x = 18/2

Simplify 18/2 to 9

marshall27 [118]3 years ago

3 0

10x - 4 = 8x + 14

Step 1: Combine like terms

x's go with x's (10x and 8x). To do this subtract 8x to both sides

(10x - 8x) - 4 = (8x-8x) + 14

2x - 4 = 14

Normal numbers go with normal numbers (-4 and 14). To do this add 4 to both sides

2x + (-4 + 4) = 14 + 4

2x = 18

Step 2: Isolate x by dividing 2 to both sides

2x/2 = 18/2

x = 9

Hope this helped!

You might be interested in

Troy is 1.4 meters tall Ena is 54 centimeters shorter How tall is Ena

natulia [17]

Ena is -1.39 meters tall
54 centimeters = 0.01 meters
0.01 meters - 1.4 meters = - 1.39 meters

8 0

3 years ago

Y = -27x + 577, where x represents the number of weeks and y represents the amount of money left in her account. After how many

Illusion [34]

To solve this problem, plugin 145 where the y is located and then solve for x
y = -27x +577
145 = -27x +577
145 -577 = -27x
-432 = -27x
-432/-27 = -27x/-27
16 = x
x = 16
After 16 weeks she will have $145 dollars in her account.

7 0

3 years ago

70% of what number is 280

Ira Lisetskai [31]

$1\% = \frac{1}{100}\\ \\70\% = \not70^7*\frac{1}{\not100 ^{10}}=\frac{7}{10}\\ \\\frac{7}{\not10^1}* \not280^{28}=7*28 = 196$

6 0

3 years ago

Read 2 more answers

Jack buys a bag of 5 apples, each

makkiz [27]

Answer:

4 1/2

Step-by-step explanation:

5 apples - 1/2 apple =

4 1/2 apple

9/2

8 0

2 years ago

The J.O. Supplies Company buys calculators from a non-US supplier. The probability of a defective calculator is 10 percent. If 3

RSB [31]

Answer:

There is a 24.3% probability that one of the calculators will be defective.

Step-by-step explanation:

For each calculator, there are only two possible outcomes. Either it is defective, or it is not. So we use the binomial probability distribution to solve this problem.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$