3 years ago

Find the value of x in the equation: x + 7 = 19

Mathematics

1 answer:

maw [93]3 years ago

6 0

Subtract 7 from each side

x=12

You might be interested in

Find all two-digit numbers with the following property: difference of that number and the number with its reversed digits is 36.

kirza4 [7]

$10x+y-(10y+x)=36\\
10x+y-10y-x=36\\
9x-9y=36\\
x-y=4\\\\
x,y\in\{1,2,3,4,5,6,7,8,9\}\\
\Downarrow\\
x=5,y=1\\
x=6,y=2\\
x=7,y=3\\
x=8,y=4\\
x=9,y=5


$

There are 5 such numbers - 51,62,73,84,95

6 0

3 years ago

Solve for x. −(−2−5x)+(−2)=18 x=−90 x=90 x=185 x=−185

Tomtit [17]

Uhm, did you, maybe, type in the problem wrong? The answer to this equation is: 18/5 or 3.6, lol, no worries, though!

5 0

3 years ago

Read 2 more answers

Which line passes through the origin? A. y=3 B. y=x−3 C. y=−3x D. y=2x+1

eimsori [14]

Answer:

Step-by-step explanation:

A is a horizontal line on 3

B will cross the y axis at (0, -3), and the x axis (3, 0)

D will cross the y axis (0, 1) and the x axis (-0.5, 0)

As C does not have a y-intercept or x-intercept, it will it (0, 0)

6 0

3 years ago

Could you Show work please

notka56 [123]

Answer:

2784 cm^2

Step-by-step explanation:

I have indicated in the pic there are 4 types of rectangles:

green : 20 x 4 = 80

red : 18 x 4 = 72

yellow : 20 x 18 = 360

blue : 18 x 16 = 288

green has 6 identical surface area so 6 x 80 = 480

red has 4 so 4 x 72 = 288

yellow has 4 so 4 x 360 = 1440

blue has 2 so 2 x 288 = 576

total : 480 + 288 + 1440 + 576 = 2784

7 0

3 years ago

Read 2 more answers

How did the corana virus start

S_A_V [24]

Answer:

THE CHINESE PEOPLE DIDNT EAT A BAT!

Step-by-step explanation:

THE VIRUS CAME ORIGINALLY FROM A LAB IN CHINA! THEY MADE IT AND DIDNT TELL THE USA ABOUT IT. WHEN CHINESE PEOPLE WERE TRAVELING TO THE USA IT SPREADED! WATCH THE NEWS AND GET YOUR FACTS STRAIGHTEN!

6 0

3 years ago