Class 7 Mathematics Chapter 4 Simple Equations Quiz 12 (25 MCQs)

Quiz Instructions

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1. Which of the following equations can be formed using the expression x = 5?
2. Solve the equation:x-8 = 15
3. $-\frac{1}{4}x=-2$
4. Write an equation to solve the problem.A fish tank is 32 cm long and 10 cm wide. Amy puts 10 fish into the fish tank. If the volume of each fish is 12.8 $cm^3$
5. $m-9=-1$
6. Is this balanced? ..... Al + O$_{2}$ $\rightarrow$ 2Al$_{2}$O$_{3}$
7. 2x-3 = x-1, Then find x value?
8. Solve the equation x+34=82
9. M/5=3
10. Solve-5 z =-4.5
11. If one side of a square is represented by 18x-20 and the adjacent side is represented by 42-13x, find the length of the side of the square.
12. X-34 = 85
13. 25 + b = 97
14. A group of 3 friends each have video games at their home. Then each friend buys 5 more video games. Now the three friends have a total of 30 video games. How many video games did each friend start with?
15. $y+3=-5$
16. What is the result of solving for the variable?
17. Solve the following systems of equations using substitution:x =-1y =-4x + 4
18. Which of the following is the value of x such that 5x-12 =-2?
19. Find the absolute value for the following:$\left|-6+5\right|$
20. Solve for y. y-35 = 50
21. A triangle has angles of 37, 58 and x degrees. What is the value of x?
22. In the 2012 Olympics, Usain Bolt won the 200-meter dash with a time of 19.32 seconds. Write and solve an equation to find his average speed to the nearest hundredth of a meter per second.Solve for r:$200=r\cdot19.32$
23. -1)+x=11
24. What coefficient should be used to make the following equation balanced? N$_{2}$+O$_{2}$$\rightarrow$ ..... NO
25. 8v-4 (V + 8) = 8