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