Can please someone help me out and explain it step by step. Thank you

Question

asked Jan 23, 2022 100k views

1 Answer

Manda · Answer 1 · 2022-01-30T06:17:04+0000

Answer:
$x=7, \ y=-2$

Explanation:

Given

Equations are
3x-y=23 and
2x+3y=8

take
3x-y=23

y=3x-23

Put the value of y in another equation

$\Rightarrow 2x+3(3x-23)=8\\\Rightarrow 2x+9x-69=8\\\Rightarrow 11x=77\\\Rightarrow x=7$

Put the value of x in y

y=3(7)-23=21-23=-2

Hence,
$x=7, \ y=-2$