Simplify the expression below:\[3(7 x)-2(4-x)\](A) \( 13-2 x \)(C) \( 23 x-8 \)(B) \( 13+2 x \)(D) \( 20 x-8 \)
21x - 8 + 2x = 23x - 8
Step 1 :3(7x) - 2(4-x) = 21x - 8 + 2x
Step 2 :21x - 8 + 2x = 23x - 8