How do you solve #a/2.8 - 6.8 = 12#?

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Answer 1 · 2016-02-23T23:00:40

#a=52.64#

Given:#" "color(brown)(a/2.8-6.8=12)#

Add #color(blue)(6.8)# to both sides

#color(brown)(a/2.8 -6.8color(blue)(+6.8)=12color(blue)(+6.8))#

But #-6.8+6.8=0" "#giving

#color(brown)(a/2.8+0=18.8)#

Multiply both siders by#" "color(blue)(2.8)#

#color(brown)(axx(color(blue)(2.8))/2.8=18.8color(blue)(xx2.8))#

But#" "2.8/2.8=1" "#giving

#axx1 =52.64#

#a=52.64#