Question

Solve the system of equations using elimination or substitution.
2x+3y=-2
5x+2y=-27

Answer 1

2x+3y=-2-----------(1
5x+2y=-27----------(2
Let use the elimination method to solve the given system of equations.
Multiplying eq (1by -2 and that of (2 by 3 and adding them we find

-4x-6y=4-----------(1
15x+6y=-81---------(2
------------------------
11x =-77
i.e. x= -77/11
i.e. x=-7
Substituting x=-7 in any of the euation say eq (1 we find
2(-7)+3y=-2
i.e. -14+3y=-2
i.e. 3y = 14-2
i.e. 3y = 12
i.e. y= 12/3
i.e. y= 4
Thus {x, y} = { -7, 4} is the solution set of the given equations

Answer 2

@sarcos11

Answer 3

thnx