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Total questions: 15
Worksheet time: 7mins
Which of the following equations have unknown values of an integer?
2x + 7x = 5x + 90
23x = 61
61x = 59x +1
2x - 5 = x + 6
Which of these is the correct way of solving this equation:
29 - 3x = 4x - 20
29 * 20 = 3x * 4x
580 = 12x
x = 48.3333333333
29 - 3x = 4x - 20
29 - 20 = 4x - 3x
x = 9
29 - 3x = 4x - 20
29 = 4x + 3x - 20
29 + 20 = 4x + 3x
49 = 7x
x = 7
Which of these is the correct way of solving this equation:
3x = 3x + 3y
3x + 3x = 3y
6x = 3y
x = 6 - 3
x = 3
y = 3
3x = 3x + 3y
3y = 3x + 3
3y - 3x = 3
0 = 3
x = NaN
y = NaN
3x = 3x + 3y
3y = 3x - 3x
3y = 0
y = 3 ÷ 0
y = NaN
x = 3
Select all one-step equations:
3x = 36
3x = 2x + 6
m - 5 = 20
x + 20 = 2x + 10
12a = 56 + 52
Select all two-step equations
x + 50 = 2x + 5
3y = 60 + 3
10m = 30 * 30
x = 20 + 10
n = 2n - 5
Solve for x
2x + 7 = 9 + 3x
2x + 7 = 9 + 3x
2x + 3x = 9 + 7
5x = 16
x = 3.2
2x - 3x = 9 - 7
-1x = 2
x = -2
2x + 9 = 3x + 7
-1x = -2
x = 2
Select all equations
2 + 56 - 5
x + 133 / 578
x = 873 - 94523452 / 934857234
x - 5 - b = bx - 59 = 8
Person 1 weigh 50kg
Person 2 weigh 1.5 times the weight of 1
Person 3 weigh 3 times of person 2 minus 1.5 times of person 1
What does person 3 weigh?
45kg (He is underweight!!!)
150kg (He is obese!!!)
60kg (He is just right)
150g (He is obese!!!)
When solving an equation, all variables must be located on the same side of the equation. True or False?
True
False
If the second-to-last step is 10 = 2x, the answer is 5 = x. True or False
True, it states the value of x
False, it should be the other way round.
Is this the correct format of recording your result: x = 20kg
Yes, you have stated the unit.
It depends
No, when writing x = 20, you should not state the unit
Keith thinks of a number. He says "If I multiply my number by 50, take 500 from that and divide that by 25, the result is 44." What is the equation for solving Keith's number?
(50x - 500) / 25 = 44
44 = (50x + 500) * 25
(500x - 50) / 25 = 44
50(x / 25) - 500 = 44
When you move a value to the other side of the equation, what happens?
You suddenly get the answer
The operation in front of the value changes to its opposite.
The equation is no longer the equation because you messed up the order
Why would you do that? It's not possible!
How should you open the bracket in this equation: 3(x + 5) = 30
3x + 5 = 30
3x + 15 = 30
3x - 5 = 30
30x + 3 = 5
Solve this equation: 5x - 5 = 2x + 10
x = 1.5
x = NaN
x = 3
x = 5
