18 = -2m + 6 - mm = -4
this is true because if u multiply -2 by -4 u get a positive 8.then 6- -4 you would turn the subtract sign and negative sign and turn them into a plus and the -4 into a positive 4 so it would look like 18=-2(-4)+6- -4then 18=8+6+4 last 18=18 hope i helped:)
your answer is true. because the -4 will change that - sing into a positive.18 = -2(-4)+6-(-4)18 = +8 + 6 - (-4)18 = +8 + 6 +418 = 18
