Question

x - 7 x - (-2X)

simplify the expression
what is the coefficient of x?

Answer 1

The simplified version of this expression is -4x.

Work
1. 1x-7x-(-2x)
2. 1x-7x+2x
Now just combine the terms.
3. -6x+2x
4.  -4x

Answer 2

x-7x+2x= 3x-7x= - 4x  ..............cause - (-2x)=+2x