2) 5x+12=8x+30
5x – 8x = 30 – 12;
-3x = 18;
x = 18 : (-3);
x = -6.
3)33+8x=-5x+72
8x + 5x = 72 – 33;
13x = 39;
x = 39 : 13;
x = 3.
2) 5x+12=8x+30
5x – 8x = 30 – 12;
-3x = 18;
x = 18 : (-3);
x = -6.
3)33+8x=-5x+72
8x + 5x = 72 – 33;
13x = 39;
x = 39 : 13;
x = 3.