Fill in the blanks with the most apt conjugation from

3 pens + 5 pencils = ₹49

4 pens + 3 pencils = ₹47

Find cost of one pen.

The equations 6x + my + 18 = 0 and 9x + 21y + 27 = 0 have a unique solution. Which of the following statements is definitely true?

A line passes through the points (2, 3) and (5, −3). Find its equation.

For which value of m, there is no solution to the equation -

a – b = 5

ma – 4b = 1

I. 2p² + 5p + 2 = 0               II. 2q² + 11 q + 14 = 0

Solve: 2x + 3y = 19 and x − y = 2, Find x and y

If in two linear equations ax + by = c and dx + ey = f and a/d = b/e = c/f  then, which of the following is true about the two equations?

The slope of the equation  24x+ 8y =56 is

If 0.4x + 0.6y = 26 and x - y = 10, find x.

Find the value of 'a' and 'b' which satisfy the following equations:

9a + 7b = 30

4a - 5b = 62