9+(-3)=6 6-(-3)=9
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
add 9 add 1 subtract 20 add 9 add 1
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
Yes
9 and 6 but subtract not add
You can only add or subtract like terms. So, you subtract 9x from 2x, which gives you -7x. Then subtract -9 from 3 to get -6. And you are left with -7x -6.
1. Subtract 25 2. Then subtract 6 3. Then subtract 12 4. Then subtract 2 5. Then subtract 10 6. Then subtract 15 7. Then subtract 7 8. Then add 3 X 1/2 9. Then add 8
How much more means to subtract. For example, "How much more is 9 than 3?". The answer would be 9-3 which is 6.
9+(-3)=6 6-(-3)=9
The pattern appears to be: subtract 6, add 17, subtract 14, add 9, subtract 7. Following this pattern, the next number should be obtained by adding 3 to the last number in the sequence, which is 6. Therefore, the next number in the sequence is 9.
19
The sequence goes (starting from the six): Up 3: 6 + 3 = 9 Then you subtract 1: 9 - 1 = 8 Then you add 3 again: 8 + 3 = 11 then subtract 1 again: 11 - 1 = 10 The sequence is up 3, minus 1. You subtract 1 from 13 to get the 12, then you have to add 3 again. 12 + 3 = 15 15 comes next. Hope I helped! - Darg
To work out the answer to 3 plus 3 x 3 - 3 plus 3, you add 3 and 3 together which is 9, multiply 9 by 3 which is 27, subtract 3 which is 24 and add 3 to get the answer which is 27.
x=3 y=9 7x + 4y =? (7 * 3) + (4 * 9) = 57 Remember always multiply/divide before you add/subtract
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
First you multiply 4 and 9, which you get 36 then you add the 3, which makes 39 and then subtract 6... leaving you with an answer of 33. :)