Question

a) 4 - 3x = 25
b) 6 - 2x ≤ -16

Answer 1

$\displaystyle a).4-3x=25 \\ -3x=25-4 \\ -3x=21 \\ x=- \frac{21}{3} \\ x=-7 \\ b).6-2x \leq -16 \\ -2x \leq -16-6 \\ -2x \leq -22 \\ 2x \geq 22 \\ x \geq \frac{22}{2} \\ x \geq 11$