How do you solve #5( y - 1) - 7= - 2( - 9y + 9) - y#?

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Answer 1 · 2017-01-27T14:06:54

#y=1/2#

#5(y-1)-7=-2(-9y+9)-y#

#:.5y-5-7=18y-18-y#

#:.5y-18+y=5+7-18#

#:.-12y=-6#

#:.y=6/12#

#:.y=1/2#

check:

substitute# x=1/2#

#:.5(1/2-1)-7=-2(-9(1/2)+9)-1/2#

#:.5(-1/2)-7=-2(-9/2+9)-1/2#

#:.-5/2-7=-2(-9/2+18/2)-1/2#

#:.-5/2-14/2=-2(9/2)-1/2#

#:.-19/2=-18/2-1/2#

#:.-19/2=-19/2#