Friday, August 7, 2015

Solve the system 2x-3y=12 and x+5y=14.

Given the equations:


2x-3y =
12 .............(1)


x+5y =
14.................(2)


We need to solve for x and
y.


We will use the substitution method to
solve.


From (2) we will rewrite x=
14-5y


Now we will substitute into
(1).


==> 2x-3y =
12


==> 2(14-5y) - 3y =
12


==> 28 - 10y - 3y =
12


==> -13y =
-16


==> y=
16/13


==> x= 14-5y = 14- 5*16/13 =
102/13


==> x=
102/13


Then the answer is: x= 102/13  and y=
16/13

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