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Which number line shows all the values of X to make the equality -3x + 1 < 7 true

User Amaster
by
9.2k points

2 Answers

1 vote

Answer is x > -2

Step-by-step explanation

-3x + 1 < 7

Subtract 1 from both sides to combine constants

-3x +1 -1 < 7 -1

Simplify

-3x < 6

Divide both sides by -3 to solve for x

-3/-3 x < 6/-3

x > -2

* note - when you divide by a negative number in equalities you have to flip the sign so < flips to >

I attached the graph to prove the solution

your number line will be a solid circle at -2 pointing to the right like the attachment















Which number line shows all the values of X to make the equality -3x + 1 < 7 true-example-1
Which number line shows all the values of X to make the equality -3x + 1 < 7 true-example-2
User Gaurav Roy
by
7.3k points
2 votes

Answer:

-3 x +1-1 <7-1

-3x <6

then show -3 < 6 in number line

Which number line shows all the values of X to make the equality -3x + 1 < 7 true-example-1
User Zielu
by
8.7k points

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