Norbert J. M. answered 12/17/15
Tutor
5.0
(268)
Math / Structural Engineering
Let's try...
3 x (( 7 + 12 ) - 2 ) = 51
3 x ( 19 - 2 ) = 51
3 x 17 = 51
51 = 51....true √check, our solution is correct
Always check your solutions and work!
Etenia Y.
Thank you but did you check it?04/23/20