12. Which of the following is the value of x needed to make the equation
1 answer:
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Answer:
Step-by-step explanation:
-5+2(10b-2)=31
Expand brackets.
-5+20b-4=31
-9+20b=31
Add 9 on both sides.
20b=40
Divide both sides by 20
b=2
Refer to the attachment for step by step explaination.
