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3 years ago

Solve for x 18 Х 16 24 0 15 O 12 0 24 o 17

Mathematics

1 answer:

iVinArrow [24]3 years ago

3 0

Answer:

Look it up

Step-by-step explanation:

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Substitution again help please

Vesnalui [34]

Answer:

Step-by-step explanation:

1) 4x -3

x = -7 ;

4x - 3 = 4*(-7) - 3 = - 28 - 3 = -31

x = 14 ;

4x - 3 = 4*14 - 3 = 56 - 3 = 53

x = 0

4x - 3 = 0 - 3 = -3

2) 6 -3x

x = -7 ;

6 - 3x = 6 - 3*(-7) = 6 + 21 = 27

x = 14

6 - 3x = 6 - 3*14 = 6 - 42 = -36

x = 0

6 - 3x = 6 - 0 = 6

$3) \dfrac{3x - 21}{7}\\\\x = -7\\\\\\\dfrac{3*(-7)-21}{7}=\dfrac{-21-21}{7}=\dfrac{-42}{7}=-6\\\\\\x = 14\\\\\dfrac{3*14-21}{7}=\dfrac{42-21}{7}=\dfrac{21}{7}=3\\\\\\x=0\\\\\dfrac{0-21}{7}=\dfrac{-21}{7}=-3\\\\$

$\dfrac{3x}{7}-21\\\\\\x = -7\\\\\dfrac{3*(-7)}{7}-21=-3-21=-24\\\\\\x =14\\\\\dfrac{3*14}{7}-21=3*2-21=6-21=-15\\\\\\x=0\\\\\dfrac{0}{7}-21=-21$

8 0

2 years ago

I need help with this asap

dedylja [7]

I got no solution i might be wrong tho

4 0

2 years ago

Please help with this questions 45 POINTSSSS!

sergij07 [2.7K]

Answer:

Part A is 14

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

4z - 8 = 20<br> Step by step

AysviL [449]

Answer:

z = 7

Step-by-step explanation:

4z - 8 = 20

Add 8 to each side

4z - 8+8 = 20+8

4z = 28

Divide each side by 4

4z/4 = 28/4

z = 7

5 0

3 years ago

$44 is 55% of what dollar amount?

melomori [17]

Answer:

im pretty sure it's $19.80

Step-by-step explanation:

(44 x 55)/100 = $24.20

44 - 24.20 = $19.80

4 0

2 years ago

Read 2 more answers

Solve for x 18 Х 16 24 0 15 O 12 0 24 o 17​

Solve for x 18 Х 16 24 0 15 O 12 0 24 o 17