Given equation,
Adding 40x to both sides :
Adding (-43) to both sides we get :
Dividing 2 from both sides :
-38×+43=-40×-57
-38×+43+40=-57
-38×+40×=-57-43
2×=-57+43
2×=-100
×=-50
I do not know if it's right
1.6m questions
2.0m answers