4+n=x
I think this should work but I'm not really sure..
-90 = -100 + x
To solve for X, you need to isolate it ( get it by itself).
Add 100 to each side:
-90 + 100 = -100 + x + 100
Simplify:
10 = x
X = 10
Subtract 3 from both sides
-18 - 3 = x/3
Simplify -18 - 3 to -21
-21 = x/3
Multiply both sides by 3
-21 * 3 = x
Simplify -21 * 3 to -63
-63 = x
Switch sides
<u>x = -63</u>
Answer:
+5
Step-by-step explanation:
If you think about it this way, sea level is like the middle ground, or 0
If you are at 0, and you swim 10 feet BELOW 0, you are now at -10
Your dolphin leaped 5 feet higher than 0 feet, so what is 0 + 5?
+5
Answer:
4
−
4
+
8
2
+
8
Step-by-step explanation:
