2 years ago

3x + 9x= 6x + 42 i would also like an explanation

Mathematics

1 answer:

lys-0071 [83]2 years ago

6 0

Answer:

x=7

Step-by-step explanation:

3x+9x=6x+42 add simalar elements 3x+9x=12x

12x=6x+42

12x-6x=6x+42-6x subract 6x from both sides

6x=42 simplify

6x/6=42/6 divide both by 6

x=7

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