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I'm assuming the equation looks something like this... (x-4)/3= -7 If so then the answer is x= -17 How you get there: (-17-4)= -21 -21/3= -7
11x+9=7x+21 11x-7x=4 4x+9=21 21-9=12 4x=12 12 divided by 4= 3 x=3
x-3-7x=21 -6x=21+3 6x=-24 x=-4
-4
(21 - (4 x 5))3