3 years ago

Solving equations: (a) 5x - 9 = 3x + 3 (b) x + 6 = 34 - x

Mathematics

2 answers:

Jet001 [13]3 years ago

8 0

Answer:

a) 5x - 9 = 3x + 3

5x - 3x = 3 + 9

2x = 12

x = 12 / 2

x = 6

b) x + 6 = 34 - x

x + x = 34 - 6

2x = 28

x = 28 / 2

x = 14

ruslelena [56]3 years ago

4 0

<h2>Answer:</h2>

<h2>Step-by-step explanation:</h2>

$\: (a)5x - 9 = 3x + 3 \\ 5x - 9 - 3x = 3 \\ 2x - 9 = 3 \\ 2x = 3 + 9 \\ 2x = 12 \\ x = \frac{12}{2} \\ x = 6 \\ (b) \: x + 6 = 34 - x \\ x + 6 + x = 34 \\ 2x + 6 = 34 \\ 2x = 34 - 6 \\ 2x = 28 \\ x = \frac{28}{2} \\ x = 14$

<h2>HOPE IT HELPS!!!</h2>

<h2>I NEED BRAINLIEST ✌️ PLZ</h2>

You might be interested in

Please solve 0.3 as a fraction

LekaFEV [45]

Answer:

3/10 or 30/100 or any fraction equivalent to those two.

6 0

3 years ago

Read 2 more answers

Suppose A = {2,5,7,9,13, 25, 26).<br>(a) Find n(A).<br>n(A) =<br>(b) T/F: 7. A

charle [14.2K]

Answer:

a) n (A) = 7

Step-by-step explanation:

Here, set A = {2,5,7,9,13, 25, 26)

Noe, for any set A,

n (A) is defined as he total number of elements in the set A.

or, n(A) = CARNALITY OF SET A

Here,the number of elements in set A = 7

⇒ n (A) = 7

6 0

3 years ago

What is a simplified expression for 3(2x + y)

Brut [27]

Answer:

6x + 3y

Step-by-step explanation:

Multiply 3 by 2x.

Multiply 3 by y.

This is known as the distributive law.

4 0

3 years ago

Read 2 more answers

An element with mass 290 grams decays by 13.2% per minute. How much of the element is remaining after 14 minutes, to the nearest

FinnZ [79.3K]

Answer:

39.96g

Step-by-step explanation:

8 0

3 years ago

A Midwestern competition awarded 38 ribbons. The number of blue ribbons was 1 less than the number of white ribbons. The number

xxTIMURxx [149]

There are 12 white ribbons, 15 red ribbons, and 11 blue ribbons.

38=(w-1)+(w+3)+w
combine like terms
38=2+3w
subtract 2 from both sides
36=3w
divide 3 on both sides
12=w

w-1=b
12-1=b
11=b

w+3=r
12+3=r
15=r

Check Your Work
w+r+b=38
15+11+12=38
38=38

7 0

3 years ago