Step-by-step explanation:
5.21× 3.4 = 17.714
thank u
The two equations are
P: y+z =6 and
Q: 5y +9z =1
Now to eliminate y , we have to make the coefficient of y same and with opposite sign
In equation Q , the coefficient of y is 5
So in equation P the coefficient of y should be -5
So we multiply equation P by -5
So (y + z = 6) ⋅ −5
Option second is correct
9^4 + 3^3
= 9•9•9•9 + 3•3•3
= 6,561 + 27
= 6,588