Question

What is the value of x in the equation 2x + 3y = 36, when y = 6? 8 9 27 36

Answer 1

9 is the value of x as,

$(9 \times 2) +( 3 \times 6) = 36 \\ \\ 18 + 18 = 36 \\ \\ hence \: proved \: as \\ \\ l.h.s. = r.h.s.$

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Answer 2

Concept:

The replacement operation can be used in a variety of situations involving formal objects that contain symbols; it involves systematically replacing occurrences of a symbol with a particular value. Substitution is a fundamental computer algebra operation.

Given:

The equation 2x + 3y = 36, is given to us

To find:

The value of x

Solution:

To determine the value of x, we will put y=6 in the equation given to us,

$2x+3y=36$

So,

$2x+3y=36\\2x+3*6=36\\2x+18=36\\2x=36-18\\2x=18\\x=\frac{18}{2} \\x=9$

So, the value of x when y is 6 is 9.

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