How do you solve #8=4(8-9)-7x#?
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1 Answer
Jun 15, 2018
Explanation:
#"simplify the right side"#
#8=4(-1)-7x=-4-7x#
#"add 4 to both sides"#
#12=-7x#
#"divide both sides by "-7#
#12/(-7)=xtox=-12/7#
#color(blue)"As a check"# Substitute this value into the right side of the equation and if equal to the left side then it is the solution.
#-4-(7xx-12/7)=-4-(-12)=-4+12=8#
#x=-12/7" is the solution"#
