6x – 4 < –34 or 3x + 10 > 10
2 answers:
1. 6x-4< -34, or 3x+10 > 10. <span>6x-4 < -34. </span> <span>6x < -34 + 4 </span> <span>6x < -30 </span> <span>X < -5. </span> <span>3x + 10 > 10. </span> <span>3x > 10 - 10 </span> <span>3x > 0 </span> <span>X > 0. </span> <span>2. -2 <= 2x-4 < 4. </span> <span>Add 4 to each end and the center: </span> <span>-2 + 4<= 2x-4+4 < 4+4. </span> <span>2 <= 2x < 8 </span> <span>Divide each end and center by 2: </span> <span>1 <= X < 4. </span> <span>The compound inequality is actually 2 </span> <span>inequalities and can be solved separately: </span> <span>2x-4 => -2, and 2x-4 < 4. </span> <span>2x-4 => -2. </span> <span>2x => -2+4 </span> <span>2x=> 2 </span> <span>X => 1. </span> <span>2x-4 < 4. </span> <span>2x < 4+4 </span> <span>2x < 8 </span> <span>X < 4. </span> <span>Solution: 1< = X < 4. or X => 1, and X<4 </span> <span> TO CHECK: </span> <span>1. Substitute any number < -5 for X. </span> <span>Eq2: Subst. any number > 0 for X.</span>
Left side: x < -5
Right side: x > 0
Not sure if you want to graph it on a number line or a coordinate plane
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