Answer:
<h2>see the answers ⤵️</h2>
Step-by-step explanation:
<h3>to understand the solving steps</h3><h3>you need to know about</h3>

- PEMDAS
let's solve:











Answer:
2 molecule of hydrogen+oxygen=water
Answer:
-2.167
Step-by-step explanation:
6X = 2-15
6X = -13
X= -13 / 6

Simplify the expression by multiplying exponents

Simplify the expression by cancelling the terms

Answer:
30
Step-by-step explanation:
180-100=80
80+70=150
180-150=30