Question

State which of the following are equations with a variable. In case of an equation with a variable, Identify the variable.

(1). 17 + x = 5

(2). 2b - 3 = 7

(3). (y - 7) > 5

(4). 9/3 = 3

(5). 7 × 3 - 19 = 2​

Answer 1

Answer:

a) 17+x = 5

= x= 5 minus 17

= x= - 12

Answer 2

Question :-

State which of the following are equations with a variable. In case of an equation with a variable, Identify the variable.

• 17 + x = 5

• 2b - 3 = 7

• (y - 7) > 5

• 9/3 = 3

• 7 × 3 - 19 = 2

Answer :-

• Sum with variable :-

$\longmapsto\sf{17 + x = 5 \: \: \: \: \star\{variable = x\}\star}$

$\longmapsto\sf{2b - 3 = 7 \: \: \: \: \star\{variable = b\}\star}$

These equation are with variable.

• Sum with no variable :-

$\longmapsto\sf{ \cfrac{9}{3} = 3}$

$\longmapsto\sf{7 \times 3 - 19 = 2}$

These Equation are not with variable.

• Sum which is not an equation.

$\longmapsto\sf{(y - 7) > 5}$