2 answers:
<span>30x + 20 = 50
</span>
<span>20 + -20 + 30x = 50 + -20
</span>0 + 30x = 50 + -20
30x = 50 + -20
<span>50 + -20 = 30
30x = 30
</span>
<span>x = 1</span>
30x - 20 = 50
use inverse operations to isolate x
30x - 20 = 50
+ 20 +20
30x = 70
(30x = 70) /30
x= 7/3 (this is the simplified term)
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