Answer:
pretty sure its the first one
Step-by-step explanation:
Answer:
20000000 + 8000000 +30000
Step-by-step explanation:
Answer:
49
Step-by-step explanation:

You can’t solve this, not enough information
Answer:
1. 5x = 10
5x-1 = 9
2. 5x = 50
5x-1 = 49
3. 5x = 60
5x-1 = 59
4. x = 5
5x-1 = 24
5. x = 7
5x = 35
6. x = 20
5x = 100
Step-by-step explanation:
substitution x in each one
for example
x = 2
5x = 5×2 (×2 because x = 2)
so, 5x = 10
about question number 4
5x=25
x = 25÷5 (change side change mark)
x = 5
questions that I don't show you how to think
let's get it by yourself
change side change mark. it's mean
if in equation is plus change to minus
if in equation is minus change to plus
if in equation is divided by change to multiply
if in equation is multiply change to divide by
hope it helps you ☺️