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Earn +20 ptsQ: Should you add or subtract 3 and 9?
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What do you add to nine to make it six and what do you subtract to six to make it nine?
9+(-3)=6 6-(-3)=9
How do you add or subtract the similar fraction?
If the fractions have the same denominator, just add or subtract the numerators. 13/20 - 9/20 = 4/20 2/5 + 1/5 = 3/5
15 24 25 5 14 15 what is the pattern?
add 9 add 1 subtract 20 add 9 add 1
8a - 9 equals 7a - 6?
Obviously, a=3 To show... Simultaneously subtract the smaller variable on the right side (7a) from both sides and the lesser constant on the left side (-9) from both sides (subtracting a negative means to add a positive), or in other words... Subtract 7a from and add 9 to both sides to instantly force the value of 'a'... (1)a = 3 There, you have your answer... a=3
Can you subtract 3 from 9?
Yes
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