The value of x + 7 + 4(x – 5) for x=2 2. The value of expression 2a – 2b – 4 – 5 + a at a=1, b=-2
3. What must be subtracted from 2a + b to get 2a – b
4. What must be added to 3x + y to get 2x + 3y
5. Subtract a + 2b from sum of a – b and 2a+b
6. On simplifying (a + b – 3) – (b – a +3) + (a – b + 3) the result is
7. What should be value of ‘a’ if y
2
+ y – a equals to 3 for y=1
3. What must be subtracted from 2a + b to get 2a – b
4. What must be added to 3x + y to get 2x + 3y
5. Subtract a + 2b from sum of a – b and 2a+b
6. On simplifying (a + b – 3) – (b – a +3) + (a – b + 3) the result is
7. What should be value of ‘a’ if y
2
+ y – a equals to 3 for y=1
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