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3 years ago

Solution for 3/4x - 12 = -18?

Mathematics

2 answers:

Ivanshal [37]3 years ago

8 0

Answer:

x = -8

Step-by-step explanation:

Add 12 on both sides

You get 3/4x = -6

Multiply 4/3 on both sides

You get x = -24/3

Simplify and you get -8.

sergejj [24]3 years ago

8 0

Answer:

x=-8

Step-by-step explanation:

The reason why x is -8 is because

The first step is to isolate the x

To isolate the x you got to add 12 to both sides

$\frac{3}{4}$ x-12+12=-18+12

the -12 gets canceled out by the positive twelve so all thats left now is

$\frac{3}{4}$ x=-18+12,-18+12 is -6 so its $\frac{3}{4}$ x=-6

The second step is to divide

now you have to divide by $\frac{3}{4}$ on both sides

$\frac{\frac{3}{4} x}{\frac{3}4} } =\frac{-6}{\frac{3}{4} }$

which $\frac{3}{4}$ is taken out on the left side because its divided by itself so all thats left is a one,while on the right side -6 divided by three-fourths is -8

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Can somebody help me with this math problem?

tensa zangetsu [6.8K]

Pretty sure it’s irrational

6 0

3 years ago

Read 2 more answers

A) 22-2•6=?<br> B) 6-1/4•16+21 divided by 3=?<br> C ) ( 8-5) ( 5-3) to the second power=?

sergejj [24]

The question has been solved based on the assumption that • represents multiplication operation

We will follow the rule of BODMAS to solve the questions. BODMAS means we solve the expression within the bracket first, then conduct division operation, followed by multiplication, addition and subtraction.

Part A

22-2•6

Let 22-2•6 be X

⇒ X = 22 - 12 (Conducting multiplication operation first)

⇒ X = 10 (Conducting subtraction next)

Part B

6-1/4•16+21 divided by 3 indicates that the first part of the expression ( 6-1/4•16+21) needs to be divided by 3.

Let 6-1/4•16+21 divided by 3 be Y

⇒ Y = (6-1/4•16+21) ÷ 3

⇒ Y = (6-0.25•16+21) ÷ 3 (Solving the bracket first and starting with the division operation)

⇒ Y = (6-4+21) ÷ 3 (Conducting the multiplication operation next)

⇒ Y = (6-17) ÷ 3 (Conducting the addition operation next)

⇒ Y = (11) ÷ 3 (Conducting the subtraction operation next)

⇒ Y = 3.333... (Moving out of the bracket and conducting the remaining operation)

Hence, Y = 3.333...

Part C

(8-5) (5-3) to the second power indicates that the brackets need to be solved first. Also, power operation is conducted before division or multiplication.

Let (8-5) (5-3) to the second power be Z

⇒ Z = (3) (2) to the second power (Solving the brackets first)

⇒ Z = (3) (2²) (Conducting the power operation next)

⇒ Z = (3) (4)

⇒ Z = 12 (Conducting the multiplication operation next)

Hence, Z = 12.

7 0

3 years ago

The sum of three consecutive numbers is greater than 40. The inequality that represents this is x + x + 1 + x + 2 > 40. Which

Brut [27]

Answer:

3x ＞ 37