Question

2. Write the variable used in the equations given below.
a. 2x + 1 =10
b. y - 4 = 15
d. 26 = 2 + 5x
C. 30 = 5n
e. 3t + 11 = 35
f. 5 = 10​

Answer 1

Explanation:

a) variable : x

2x = 10-1

x = 9/2

b) variable : y

y = 15+4 = 19

c) variable : n

n = 30/5 = 6

d) variable : x

26 - 2 = 5n

24 = 5n

5n = 24

n = 24/5

e) variable : t

3t = 35-11 = 24

t = 24/3 = 8

f) no variable

equation is wrong, 5 is not equal to 10