Problem on Simultaneous Equation

Topic : Simultaneous Equation

Question : Solve and find the value of x and z
x + z = 22
x +6z = 50

Solution :
x + z = 22---------------(1)
x +6z = 50--------------(2)

Subtracting second equation from first equation
we get, -5z = -28
divide both sides by -5
So z = 5.6

Substitute the value of z in equation (1)
x+5.6 = 22
x=22-5.6
x= 16.4

So the value of x = 16.4 and z = 5.6