Select the equation(s), where 9 is a solution.
1 answer:
Answer:
a and b
Step-by-step explanation:
a)
9+3x=36
3x=27
<em>x=9</em>
b)
57=6x+3
54=6x
<em>9=x</em>
c)
4x+3=43
4x=40
x=10
d)
4x=49
x=12.25
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Answer:
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Step-by-step explanation:
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