Question

Make the variable in the brackets as the subject of each of the following formulae mx + 2x = 6​

Answer 1

See Explanation

Explanation:

Given

`mx + 2x = 6`

Required

Make the variable in bracket the subject

From the given expression, none of the variables (m and x) are in brackets.

So, I will solve for m and then solve for x

Solving for m:

`mx + 2x = 6`

Subtract 2x from both sides

`mx = 6 - 2x`

Divide both sides by x

`m = (6 - 2x)/(x)`

Solving for x:

`mx + 2x = 6`

Factorize

`x(m+2)= 6`

Divide both sides by m + 2

`x = (6)/(m+2)`