Answer:
x = -3
Explanation:
1) Expand any brackets there are
To expand brackets we have to multiply everything outside the bracket by everything inside the bracket!
- 0.4 × 5x = 2x
- 0.4 × -10 = -4
- 2x-4
2) Get rid of the smallest value of x
To leave x only on one side we have to get rid of the smallest one!
- 5x + 5 = 2x - 4
- 5x + 5 - 2x = 3x + 5
- 2x - 4 - 2x = -4
3) Isolate the x
This means x = -3
Hope this helps, have a lovely day! :)