Question

Solve for x, 2x + 4 > 9

Answer 1

Answer:

$2x+4>9\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:x>\dfrac{5}{2}\:\\ \:\mathrm{Decimal:}&\:x>2.5\\ \:\mathrm{Interval\:Notation:}&\:\left(\dfrac{5}{2},\:\infty \:\right)\end{bmatrix}$

Step-by-step explanation:

$2x+4>9$

$\gray{\mathrm{Subtract\:}4\mathrm{\:from\:both\:sides}}$

$2x+4-4>9-4$

$\gray{\mathrm{Simplify}}$

$2x>5$

$\gray{\mathrm{Divide\:both\:sides\:by\:}2}$

$\dfrac{2x}{2}>\dfrac{5}{2}$

$\gray{\mathrm{Simplify}}$

$x>\dfrac{5}{2}$