3x+7=13
move +7 to the other side
sign changes from +7 to -7
3x+7-7= 13-7
3x= 6
divide by 3 for both sides
3x/3= 6/3
x=2
Answer : x= 2
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is the answer to:

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is the answer to:

Answer:
840
Step-by-step explanation:
2,000(0.07) = 140
find the amount of interest per year
140(6) = 840
hope it helps!