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Sagot :
To solve the inequality [tex]\( -4(x + 7) < 3(x - 2) \)[/tex], follow these steps:
1. Distribute the constants on both sides of the inequality:
[tex]\[ -4(x + 7) < 3(x - 2) \][/tex]
[tex]\[ -4x - 28 < 3x - 6 \][/tex]
2. Move the variable terms to one side by adding [tex]\(4x\)[/tex] to both sides:
[tex]\[ -28 < 3x - 6 + 4x \][/tex]
[tex]\[ -28 < 7x - 6 \][/tex]
3. Move the constant term to the other side by adding [tex]\(6\)[/tex] to both sides:
[tex]\[ -28 + 6 < 7x \][/tex]
[tex]\[ -22 < 7x \][/tex]
4. Divide both sides by [tex]\(7\)[/tex] to isolate [tex]\(x\)[/tex]:
[tex]\[ \frac{-22}{7} < x \][/tex]
[tex]\[ x > \frac{-22}{7} \][/tex]
5. Expressing it back in terms of an inequality with [tex]\(-7x\)[/tex]:
[tex]\[ -7x > 22 \][/tex]
Therefore, the correct inequality that is equivalent to the given inequality is:
[tex]\[ \boxed{ -7x > 22 } \][/tex]
This matches option B.
1. Distribute the constants on both sides of the inequality:
[tex]\[ -4(x + 7) < 3(x - 2) \][/tex]
[tex]\[ -4x - 28 < 3x - 6 \][/tex]
2. Move the variable terms to one side by adding [tex]\(4x\)[/tex] to both sides:
[tex]\[ -28 < 3x - 6 + 4x \][/tex]
[tex]\[ -28 < 7x - 6 \][/tex]
3. Move the constant term to the other side by adding [tex]\(6\)[/tex] to both sides:
[tex]\[ -28 + 6 < 7x \][/tex]
[tex]\[ -22 < 7x \][/tex]
4. Divide both sides by [tex]\(7\)[/tex] to isolate [tex]\(x\)[/tex]:
[tex]\[ \frac{-22}{7} < x \][/tex]
[tex]\[ x > \frac{-22}{7} \][/tex]
5. Expressing it back in terms of an inequality with [tex]\(-7x\)[/tex]:
[tex]\[ -7x > 22 \][/tex]
Therefore, the correct inequality that is equivalent to the given inequality is:
[tex]\[ \boxed{ -7x > 22 } \][/tex]
This matches option B.
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