Question

*If in the equation x + 2y = 10, the value of y is 6, then the value of x will be ………………*

1️⃣ -2
2️⃣ 2
3️⃣ 4
4️⃣ 5​

Answer 1

Given:

The value of y is 6 in the equation x + 2y = 10.

To Find:

The value of x.

Explanation:

By putting the respected value in the equation, we get

x + 2(6) = 10

or, x + 12 = 10

By transposition method, we get

x = 10 - 12 = -2

Answer:

The value of x is -2, so option 1 is the correct answer.

To Check:

To prove that x = -2, we should put both the values of x and y in the equation to see if LHS equals RHS.

By putting the value of x and y, we get

-2 + 2(6) = 10

or, -2 + 12 = 10

or, 10 = 10

LHS = RHS

Hence, proved.

Answer 2

Answer:

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