If 1/2 is substracted from a number and the difference is multiplied by 4, the result is 6. Which is the number?
1
2
3
0
I multiplying a certain number by 28, add 14 to the product, divide the sum by 13 and subtract 4 from the result. If I obtain twice the original number, what number did I take at first?
16
17
18
19
A linear equaiton in one variable can have solutions.
One
Two
Zero
Infinite
4 x + 5 = x - 9 is a linear equation in _________ variable.
None of these
Solve x/3 + x/2 = 10
12
11
10
9
Solve x+1/5 = 2.
Z/2 - 4 = -8 Z/2 = _________
-12
+12
-4
+4
One number is 4 less than three times another number. If their sum is increased by 5, the result is 25. Find both the numbers.
8, 14
6,12
6,14
12, 14
Solve 16 = -x+20
4
The difference between two supplementary angles is 20o. Find the angles
90o , 90o
80o, 100o
60o, 120o
70o, 110o
