Hapa nimetumia simultaneous equation
Example;
Let's call
Sungura = x
Mbwa = y and
Paka = z
Then;
x + z = 10................. eqn 1
y + x= 20..................... eqn 2
y+z=24......................... eqn 3
Take eqn 1 and make z the subject
y+z=10, z=10-z..............eqn 4
Substitute eqn 4 into eqn 2, gives
y+(10-z)=20, y-z=10...........eqn 5
Take eqn 3 and eqn 5
y-z=10
y+z=24
Take eqn 5 plus eqn 3 (either you can minus)
(y+y)+(-z+z)=10+24
2y = 34, divide 2 both sides, gives
y = 17
From eqn 2
y+x=20, make x the subject
x = 20 - y, substitute the value of y=17
x = 20 - 17 = 3
x = 3
From eqn 5
y - z = 10, but y = 17
17 - z = 10, z = 17 -10 =7
z = 7
Or from eqn 3
y + z = 24 but y = 17
17 + z = 24, z = 24 - 17 = 7
Then;
x + y + z = 3+ 17 + 7 = 27
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