From the sum of 2x – y + 7 and 2y - 10 , subtract 4 x – 2y - 11
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Answers
Answer:
3x−y+711+2=10 and 2y+x+117=10
3x−y+711+2=10 and 2y+x+117=10
3x−y+711+2=10 and 2y+x+117=10
3x−y+711+2=10 and 2y+x+117=10
Step-by-step explanation:
Answer:
a nectangle My
My breadth is
times of the
length
ractice set 5.2
pee notes and some 10 rupee notes. Total amount of
Number of rupee notes are less by 10 than number
amber of me and 10 rupee notes
less than we is momentor. If 1 is added to
evely, the min of numerator to denominator is 3 : 5.
Problem set 5
(0) Choose the correct alternative answers for the following questions.
If 3x + 5y = 9 and 5x + 3y = 7 then What is the value of x+y?
(A) 2
(B) 16 (C) 9 (D) 7
(i) "When 5 is subtracted from length and breadth of the rectangle, the perimeter
becomes 26.' What is the mathematical form of the statement?
(A)-Y-8 (B) x+y=8 (C)x+y=23 (D) 2x+y = 21
(i) Ajay is younger than Vijay by 5 years. Sum of their ages is 25 years. What is
Ajay's age ?
(A) 20
(B) 15
(C) 10 (D) 5
(2) Solve the following simultaneous equations.
(1) 2x + y = 5 x - y = 5
(ii) x - 2y = -1; 2xy = 7
(i) x + y = 11. 2x - 3v = 7
(V) 22+ = -2:3x - x - 7
(W) 2x-5. 3x + 20
(3) By equating coefficients of variables, solve the following equations.
(1) 3r 4-7 5x + 213 (i) 5x+7=17: 3x - 2y=4
(ii) x - 2y= -10; 3x - 5y=-12 (iv) 4x+=34 + 43= 16
(4) Solve the following simultaneous equations.
19
eepika 34 yar Priyanka is elder to Deepika by 6
*
concertam zoo is 50. The total number of their
ins and peacocks in the zon.
very year there is a certain increment in his salary.
Rs.450) and after 10 years his monthly salary
genal salary and yearly increment.
4500 rupees and price of 5 chairs and 3 tables is
of cars and tables
(m) +=13: 23+5=19