Question

Simplify 7(x - 1) - 2(x + 1) + 3(x - 4)

8x - 21
8x - 4
8x + 21

Answer 1

8x-34 is the same as 8x-y2

Answer 2

`\huge\boxed{8x-21}`

Explanation:

`7(x-1)-2(x+1)+3(x-4)\qquad|\text{use the distributive property}\\\\=(7)(x)+(7)(-1)+(-2)(x)+(-2)(1)+(3)(x)+(3)(-4)\\\\=7x-7-2x-2+3x-12\qquad|\text{combine like terms}\\\\=(7x-2x+3x)+(-7-2-12)\\\\=8x-21`