Question

Which equation is related to the equation shown?

x + 3 = 12





A.


x = 12 + 3


B.


x = 12 ÷ 3


C.


x = 12 − 3


D.


x = 12 • 3

Answer 1

C, because it's the opposite of the actual equation.

Answer 2

The answer is:

C) x = 12 - 3

Work/explanation:

To solve, subtract 3 on each side:

`\rightarrow\hspace{13} \sf{x+3 = 12}\\\\\\\rightarrow\hspace{13}\sf{x=12-3}\\\\\\\rightarrow\hspace{13}\sf{x=9}`

The equation that is related to the equation shown is x = 12 - 3.