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What is the solution for x in the equation?
-- + i = 21 – 2

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4 Select The Correct Answer What Is The Solution For X In The Equation I 21 2 Reset Next 2022 Edmentum All Rights class=

Sagot :

separateAnswer:

A) x = 4/3

Step-by-step explanation:

Multiply each term by 7 so you get

-7x + 3 = 14x - 25

Take the x's and the integers to seperate sides

3 + 25 = 14x + 7x

28 = 21x

Divide the 21 to get the x alone

28/21 = x

Simplify; x = 4/3

The variable x in the equation [tex]-x+\frac{3}{7} =2x-\frac{25}{7}[/tex] is 4 / 3.

How to find the variable in an equation

Variables are numbers represented by letters in an equation. Therefore, let's find the variable x in the equation.

[tex]-x+\frac{3}{7} =2x-\frac{25}{7}[/tex]

add x to both sides of the equation

-x + x + [tex]\frac{3}{7} = 2x+x-\frac{25}{7}[/tex]

Therefore,

[tex]\frac{3}{7} =3x-\frac{25}{7}[/tex]

add 25 / 7 to both sides of the equation

[tex]\frac{3}{7} +\frac{25}{7}=3x[/tex]

[tex]\frac{3 + 25}{7} = 3x[/tex]

[tex]\frac{28}{7}=3x[/tex]

cross multiply

28 = 7 × 3x

21x = 28

x = 28 / 21

x = 4 / 3

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