Q3 of 92 Page 69

Let us write the least natural number by which we can multiply both the equations and get the equal co - efficients of x, where the equations are 4x – 3y = 16 and 6x + 5y = 62.

In this case, the coefficient of x are 4 and 6, thinking of the common multiple of the 4 and 6 comes out to be 12, hence multiplying 4x – 3y = 16 by 3 and 6x + 5y = 62 by 2 makes the coefficient of x as 12 and then subtracting both the equations to eliminate x.


More from this chapter

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1

Let us solve the following simultaneous linear equations in two variables by the method of elimination and check them graphically:

2x + 3y – 7 = 0


3x + 2y – 8 = 0

 2

To eliminate y, what number is multiplied with the equation 7x – 5y + 2 = 0 and then add to the equation 2x + 15y + 3 = 0.

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Let us solve the following linear simultaneous equations in two variables by the method of elimination:

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 4

Let us solve the following linear simultaneous equations in two variables by the method of elimination:

2x + 3y = 32


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