Question

The equation x = 7, in two variables, can be written as
(a) x + 0y = 7
(b) 0x + y = 7
(c) 0x + 0y = 7
(d) x + y = 7

Answer 1

Answer:

(A) is the correct option

Step-by-step explanation:

x+0y=7

when we multiply 0 with any number or variable the answer will be 0

so,

x+0=7

x=7

Answer 2

━━━━━━━━━━━━━━━━━━━━

✺Answer:

♦️GiveN:

• x = 7

♦️To FinD:

• Above equation in two variable!

━━━━━━━━━━━━━━━━━━━━

✺Explanation of Q.

The equation given above is x=7 , which can be written as x-7=0. This can also be written as

$\large{ \rm{ \rightarrow \: {x}^{1} - 7 \times {x}^{0} = 0}}$

So the highest degree of the given equation is 1.

As, we have to write this equation in two variables. Let me explain what linear equation in two variables is?

An equation which can be expressed in the form of ax + by + c =0 , where a, b, and c are real numbers and a,b not both = 0 is called a linear equation of variable x and y .

It the above question, it is ask to set it in the form of linear equation in two variables which I can use x and y as per given options.

━━━━━━━━━━━━━━━━━━━━

✺Solution:

We have to represent it as ax + by + c=0,

So it can be written as,

$\large{ \rm{ \rightarrow \: x - 7 = 0}} \\ \\ \large{ \rm{ \rightarrow \: (1 \times x) +(0 \times y) - 7 = 0}} \\ \\ \large{ \rightarrow \: { \rm{1x + 0y - 7 = 0}}}\\ \\ \large{\red{\rm{\rightarrow{1x+0y=7}}}}$

━━━━━━━━━━━━━━━━━━━━

✺So, Final Answer

$\Large{\purple{\boxed{\rm{\therefore{Option \:A}}}}}$

━━━━━━━━━━━━━━━━━━━━