Answer:
A) For (-1,1) to be the solution of the given system of equations, the value of a = -6.
Step-by-step explanation:
Here, the given system of equation are:
3x+ 5y = 2
ax + 8y = 14
Now, as (-1,1) is given as the solution for the system.
⇒ (-1,1) is also the solution for the equation ax + 8 y = 14
So, for x = -1 and y = 1, the equation is SATISFIED.
⇒ a(-1) + 8(1) = 14
⇒ -a + 8 = 14
or, -a = 14 - 8 = 6
⇒ a = -6
or, - 6 x + 8y = 14 is the required equation.
Hence, for (-1,1) to be the solution of the given system of equations, the value of a = -6.
