What diagram can you add a picture of it ?
2x - 3 = sally's berries
x= jim's berries
2x - 3 + x = 21 } equation
3x - 3 = 22 } simplified
+3 +3
3x = 25
---- ----
3 3
x = 8
21 - 8 = 13
sally picked 13 apples
2.4z + 1.2z = (2.4 + 1.2)z = 3.6z;
We have 3.6z - 6.5 =0.7 / +6.5;
3.6z = 7.2 / ×10;
36z = 72 / ÷36;
z = 2.
54% of that number would be 36