Question

How do you solve `-2.5x+2.8=-4.5`?

Answer 1

x = 2.92

Explanation:

to solve equations of this type you collect the terms with the variable in them to one side of the equation , usually the left hand side and the constants to the other side.

-2.5x + 2.8 = - 4.5 becomes

-2.5x = -4.5 - 2.8

`rArr -2.5x = - 7.3` ( now divide both sides by - 2.5 )

`rArr (- 2.5x)/- 2.5 =( - 7.3)/ -2.5`

`rArr x = 2.92`