4x+6<-6
-6 -6
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4x<-12
Then you divide 4x on both sides so 4x divided by 4x and -12 divided by 4x. When dividing this the 4 isnt a negative so you dont flip the "<" so it stays the same. The answer would be x<-3
Start by substituting in the values for p and r
10+2(4)-3(5)
Next multiply
10+8-15
Now add and subtract
3. Your answer is 3