#1**+1 **

first one

x-2y = 10

3x-5y = 27 multiply first equation by -3 to get:

-3x + 6y = -30 now add the bottom two equations (this will 'ELIMINATE' the 'x' variable)

y = -3

now use this value of y in one of the eqautions to find x

x - 2(-3) = 10

x =4

Solve the second one similarly.....

ElectricPavlov Jul 10, 2020