Answer:
1.3x - 2 - (3.3x + 5) = 2x + 1
1.3x - 2 - 3.3x - 5 = 2x + 1
-2x - 7 = 2x + 1
-7 = 4x + 1
-8 = 4x
x = -2
can you explain it more clear? ;)
Step-by-step explanation:
Try working from Right to left
That way the exponits will work out.
21
count only the pair numbers between 200 and 240:
200, 202, 204, 206, 208, 210, 212, 214, 216, 218, 220, 222, 224, 226, 228, 230, 232, 234, 236, 238, 240
