1. Solve each inequality in section 2 step-by-step.
(a) Solve $5x - 6 < 29$:
Add 6 to both sides: $5x < 35$
Divide both sides by 5: $x < 7$
(b) Solve $7x + 2 \geq -19$:
Subtract 2: $7x \geq -21$
Divide by 7: $x \geq -3$
(c) Solve $5x - 8 \leq 12$:
Add 8: $5x \leq 20$
Divide by 5: $x \leq 4$
(d) Solve $6x - 3 \geq 1$:
Add 3: $6x \geq 4$
Divide by 6: $x \geq \frac{2}{3}$
(e) Solve $5x + 7 < 11$:
Subtract 7: $5x < 4$
Divide by 5: $x < \frac{4}{5}$
(f) Solve $7x - 8 > -2$:
Add 8: $7x > 6$
Divide by 7: $x > \frac{6}{7}$
(g) Solve $4 - 2x \geq -8$:
Subtract 4: $-2x \geq -12$
Divide by -2 (reverse inequality): $x \leq 6$
(h) Solve $5 - 6x < -7$:
Subtract 5: $-6x < -12$
Divide by -6 (reverse inequality): $x > 2$
(i) Solve $4(2 - x) \geq -8$:
Expand: $8 - 4x \geq -8$
Subtract 8: $-4x \geq -16$
Divide by -4 (reverse inequality): $x \leq 4$
(j) Solve $7 + 4x \geq 19$:
Subtract 7: $4x \geq 12$
Divide by 4: $x \geq 3$
(k) Solve $6 - 5x > -10$:
Subtract 6: $-5x > -16$
Divide by -5 (reverse inequality): $x < \frac{16}{5}$
(l) Solve $\frac{3x - 4}{2} \geq 3$:
Multiply both sides by 2: $3x - 4 \geq 6$
Add 4: $3x \geq 10$
Divide by 3: $x \geq \frac{10}{3}$
2. Solve each compound inequality in section 3.
(a) $5 < 3x + 2 \leq 11$
Subtract 2: $3 < 3x \leq 9$
Divide by 3: $1 < x \leq 3$
(b) $3 \leq 4x - 5 < 15$
Add 5: $8 \leq 4x < 20$
Divide by 4: $2 \leq x < 5$
(c) $11 \leq 4x + 7 < 27$
Subtract 7: $4 \leq 4x < 20$
Divide by 4: $1 \leq x < 5$
(d) $5 < 6x - 7 < 29$
Add 7: $12 < 6x < 36$
Divide by 6: $2 < x < 6$
(e) $-24 \leq 3x - 9 \leq -14$
Add 9: $-15 \leq 3x \leq -5$
Divide by 3: $-5 \leq x \leq -\frac{5}{3}$
(f) $-3 \leq 4x + 5 < 17$
Subtract 5: $-8 \leq 4x < 12$
Divide by 4: $-2 \leq x < 3$
Each solution can be illustrated on a number line with appropriate open or closed endpoints depending on strict or inclusive inequalities.
Final answers:
2(a) $x < 7$
2(b) $x \geq -3$
2(c) $x \leq 4$
2(d) $x \geq \frac{2}{3}$
2(e) $x < \frac{4}{5}$
2(f) $x > \frac{6}{7}$
2(g) $x \leq 6$
2(h) $x > 2$
2(i) $x \leq 4$
2(j) $x \geq 3$
2(k) $x < \frac{16}{5}$
2(l) $x \geq \frac{10}{3}$
3(a) $1 < x \leq 3$
3(b) $2 \leq x < 5$
3(c) $1 \leq x < 5$
3(d) $2 < x < 6$
3(e) $-5 \leq x \leq -\frac{5}{3}$
3(f) $-2 \leq x < 3$
Inequalities Solving
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