Question

Hello! I am having a little trouble understanding this question? May I have any help?

Answer 1

Given

Answer

Matrices are equal if their corresponding elements are equal

3x - x =4

2x = 4 ;

x =4/2 ;

x= 2

Also , -(4y+8)= 7y + 14

-4y -8 =7y +14;

-4y - 7y =14 + 8;

-11y = 22 ;

y = -22/11

y=-2