Answer:
hi I am new here in brainly
n<10
Step-by-step explanation:
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a-7=3(b+2)
1. Simplify/Combine like terms
a-7=3b+6
2. Remove a variable
a-7-a=3b+6-a
7=2b+6
3. Isolate the variable
7-6=2b-6
1=2b
4. Divide
1/2=2b/2
b=1/2
1/2g?
34=2x + 16
18=2x
x=9
Robert used 9 grams of iron filings in his first experiment.
