Answer:
Diagram a : y = 7, x = 8
Diagram b : y = 16, x = 6
Diagram c : y = 7, x = 5
Explanation:
Diagram a :
calculate y: calculate x:
4y - 6 = 22 2x + 3 = 19
+6 +6 -3 -3
4y = 28 2x = 16
/4 /4 /2 /2
y = 7 x = 8
Diagram b :
calculate y : calculate x :
3 (y-4) = 36 5 (x +2 ) = 40
3y - 12 = 36 5x +10 = 40
+12 +12 -10 -10
3y = 48 5x = 30
/3 /3 /5 /5
y = 16 x = 6
Diagram c :
calculate y: calculate x :
2y + 9 = 4y - 5 4x + 2 = 3x + 7
-2y -2y -3x -3x
9 = 2y - 5 x + 2 = 7
+5 +5 -2 -2
14 = 2y x = 5
/2 /2
y = 7