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3 years ago

What is the solution of 4x - 30 ≥ -3x + 12?

2 answers:

4 0

First, let's add 30 to both sides:
4x - 30 +30 ≥ -3x + 12+30

4x ≥ -3x + 42

Now, let's add 3x to both sides
4x +3x ≥ -3x+3x + 42
7x ≥ 42

Let's divide both by 7:

x ≥ 6

Kipish [7]3 years ago

4 0

4x - 30 ≥ -3x + 12
+ 3x + 3x 
 7x - 30 ≥ 12
 + 30 + 30
 7x ≥ 42
 7 7
 x ≥ 6

The answer is (1). The solution set is (6, ∞).

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