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jasenka [17]
3 years ago
8

30t - 20=70 two step equations

Mathematics
2 answers:
Alenkasestr [34]3 years ago
8 0

Answer:

Hi!

To solve this we can begin by adding 20 to both sides

30t = 90

Next we divide both sides by 30


t = 3


~CoCo

Elza [17]3 years ago
4 0
30t-20=70
+20 +20
____________
90.
30t 90
Divide by 30 on each

T=3



The -20 and +20 cancel out so you just forget about those

The 30t cancels out with the divided by 30 again so it becomes t and 30x3=90


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