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V125BC [204]
2 years ago
13

Given: 3x = 5 (x − 4) Prove: x = 10

Mathematics
1 answer:
damaskus [11]2 years ago
4 0

Answer:

see the procedure

Step-by-step explanation:

we have

3x=5(x-4)

step 1

3x=5(x-4) ------> given problem

step 2

Applying the Distributive Property right side

3x=5(x)-5(4)

3x=5x-20

step 3

Applying the Subtraction Property of Equality

Subtract (3x-20) both sides

3x-(3x-20)=5x-20-(3x-20)

20=2x

step 4

Applying Division Property of Equality

Divide by 2 both sides

20\2=x

Rewrite

x=10

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The sum of three times a first number and twice a second number is 14. If the second number is subtracted from twice the first n
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Step-by-Step Explanation:

Let the First Number be ‘x’
Let the Second Number be ‘y’

Framing 2 Equations :-

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Multiplying Eq. 2 by 2 :-

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Adding Eq. 1 and Eq. 3 we get :-

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Substitute value of ‘x’ in Eq. 1 :-

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2 years ago
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