Question

24.Find the value of x in each of the followings: (a)7x+4=25 (b) 3x+7=-20 *

4 points

3,-9

-3,-9

3,9

-3,9

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Answer 1

Answer:

3,-9 is your answer please follow and send thanks 20❤︎❤︎=40❤︎❤︎

Answer 2

$\sf{Answer}$

Step-by-step-explanation:-

a)

7x + 4 = 25

Transpose 4 to RHS

7x = 25 - 4

7x = 21

Make a subject x

$\sf\dfrac{7x}{7}$=$\sf\dfrac{21}{7}$

x = 3

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b)

3x + 7 = -20

Transpose 7 to RHS

3x = -20-7

3x = -27

Make a subject x

$\sf\dfrac{3x}{3}$ = $\sf\dfrac{-27}{3}$

x = -9

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So, the answer is

3 , -9 (a)

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Verification:-

Substuite value of x to get LHS = RHS

a)

7x + 4 = 25

We got x = 3

7(3) + 4 = 25

21 + 4 = 25

25 = 25

Verified

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_________

b)

3x + 7 = -20

We got x value -9

3(-9) + 7 = -20

-27 + 7 = -20

-20 = -20

Verified

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