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Solve the simultaneous equations14x+3y= 20,7x+2y= 11.

Question

Solve the simultaneous equations14x+3y= 20,7x+2y= 11.

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Solution

Sure, let's solve these simultaneous equations step by step.

Step 1: Write down the equations:

14x + 3y = 20 ----(1)

7x + 2y = 11 ----(2)

Step 2: To eliminate one of the variables, we can multiply the second equation by 2:

14x + 4y = 22 ----(3)

Now we have two new equations:

14x + 3y = 20 ----(1)

14x + 4y = 22 ----(3)

Step 3: Subtract equation (1) from equation (3) to eliminate x:

14x + 4y - (14x + 3y) = 22 - 20

This simplifies to:

y = 2

Step 4: Substitute y = 2 into equation (1):

14x + 3*2 = 20

14x + 6 = 20

14x = 20 - 6

14x = 14

x = 14/14

x = 1

So, the solution to the simultaneous equations is x = 1 and y = 2.

This problem has been solved

Similar Questions

Solve the simultaneous equations6x+7y= −22,2x+3y= −14.

Solve the simultaneous equations12x+7y= 23,4x+5y= 21.

Example 2:Solve the simultaneous equations by elimination method3 2yx   x2y8,5 .

5x+7y=12; 2x+14y=12

Solve the simultaneous equations3a−2b= 5,8a−3b= 11.

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