Question

Solve the literal equation for x

Answer 1

Are this Form 1 question?

Answer 2

see explanation

Explanation:

(1)

y = 5x - 7x , that is

y = - 2x ( divide both sides by - 2 )

x = -
`(1)/(2)` y

(2)

mx - r = y ( add r to both sides )

mx = y + r ( divide both sides by m )

x =
`(y+r)/(m)`

(3)

2x + 3y = 10 ( subtract 2x from both sides )

3y = 10 - 2x ( divide both sides by 3 )

y =
`(10-2x)/(3)`

(4)

5x - 3y = 4 ( subtract 5x from both sides )

- 3y = 4 - 5x ( divide both sides by - 3 )

y =
`(4-5x)/(-3)` ( multiply numerator/ denominator by - 1 , to 'tidy up' )

y =
`(5x-4)/(3)`