What is the solution of 4x - 30 ≥ -3x + 12?
2 answers:
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
4x - 30 ≥ -3x + 12
<u>+ 3x + 3x </u>
7x - 30 ≥ 12
<u> + 30 + 30</u>
<u>7x</u> ≥ <u>42</u>
7 7
x ≥ 6
The answer is (1). The solution set is (6, ∞).
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