2 x
— =
7 x + 10

x = ???​

collect terms in x on the left side of the equation

and numeric values on the right side

subtract

7

x

from both sides

2

x

−

7

x

=

7

x

−

7

x

+

10

⇒

−

5

x

=

10

divide both sides by

−

5

−

5

x

−

5

=

10

−

5

⇒

x

=

−

2

Step-by-step explanation:

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b