Question

The value of x in 3x/4 = 7- x​

Answer 1

Answer:

x=11/3.

Step-by-step explanation:

3x-4=7. 3x=7+4. 3x=11. x=11/3.

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Answer 2

Concept:

Algebraic expressions.

Given:

3x/4 = 7- x

Find:

The value of x.

Answer:

The value of x is 4.

Solution:

The given algebraic expression is

3x/4 = 7 - x

If we have to find out the value of x, then we need to take terms containing x on one side of equal to sign and independent terms on other side.

4 is in the division on the left-hand side. When we take it to the right-hand side, division changes to multiplication. We get,

3x = 4(7 - x)

3x = 28 - 4x

Now, we will take 4x from the right side to the left side. Subtraction changes to addition. We have,

3x + 4x = 28

7x = 28

x = 28/7

x = 4

Hence, the value of x is 4.

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