How do you solve #-4( 9+ \frac { 9} { 4} x ) - 10( 9- \frac { 9} { 10} x ) = 9+ x - 7( 4- x )#?
1 Answer
Sep 17, 2017
#x=(-107)/8#
Explanation:
Given -
#-4(9+9/4x)-10(9-9/10x)=9+x-7(4-x)#
#-36-36/4x-90+90/10x=9+x-28+7x#
#-36-9x-90+9x=-19+8x#
#-126=-19+8x#
#-19+8x=-126#
#8x=-126+19=-107#
#x=(-107)/8#
