3 years ago

What is the answer to 3×+9=42

Mathematics

2 answers:

Rzqust [24]3 years ago

8 0

Answer:

x = 11

Step-by-step explanation:

from question 3x + 9 = 42

collect the like terms

3x = 42-9

3x = 33

divide both sides by 3

3x/3 = 33/3

x = 11

to check if your answer is correct, put 11 where you see x in the question.

3x + 9 = 42

3(11) + 9 =42

33+9 = 42

42 = 42...........proved

Tomtit [17]3 years ago

6 0

Answer:

Step-by-step explanation:

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