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Kira French
Mathematics
9 November, 13:44
12x-39<9 and - 4x+3<-6
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Justine Gill
9 November, 13:46
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Remember, you can do anything to an equation as long as you do it to both sides
and when multiply or divide by a negative in inequalities, flip the direction of the sign
12x-39<9
add 39 to both sides
12x<48
divde bothh sides by 12
x<4
-4x+3<-6
minus 3 both sides
-4x<-9
times both sides by - 1 and flip sign
4x>9
divide both sides by 4
x>9/4
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