1 Mark Each
1. State with reason whether the equation 3x2 − 7y = 13 is a linear equation in two variables or not.
2. Express the following condition using variables x and y: Two numbers differ by 3.
3. For the equation 4x + 5y = 20, find y when x = 0
4. Write any two solutions of the equation x + y = 7.
5. Decide whether (0, 2) is the solution of the equation 5x + 3y = 6.
6. Write any two solutions of the equation a − b = − 3.
7. If x + 2y = 5 and 2x + y = 7, then find the value of x + y
8. If Dx = 24 and x = − 3, find the value of D.
9. The cost of a book is 5 rupees more than twice the cost of a pen. Express this relationship using a linear equation by taking the cost of a book as x and the cost of a pen as y.
10. Write the equation a 4 + b 3 = 4 in the standard form.
This page was last modified on 30 March 2021 at 18:07