What is the number that is one more than 12 of 1/10 of 14 of 2,400?

The correct equation is C. Distribute the 2 to both expressions in the parentheses, which gives you 4x-14+8x+6=112. Combine like terms. 12x-8=112. Add 8 to both sides to cancel the negative 8 and isolate the variable. 12x=120. Divide both sides by 12 to isolate the variable. x=10.