Leolyngraceridn
Answered

Tuklasin ang maliwanag na mga sagot sa iyong mga tanong sa IDNStudy.com. Makakuha ng mga kumpletong sagot sa lahat ng iyong mga tanong mula sa aming network ng mga eksperto.

7x -21 > 4x
solution with graph

answer po pls
nonsence answer will be reported​

Sagot :

Aenahidn

Answer:

The given equation is an example of linear inequality. Linear since the highest degree of its term(s) with a variable is one (or first) and inequality since the equation sign is "greater than" (>).

Getting the solution means solving for the variable such as "x" in the given equation.

[tex][Sol]\\\text{Arrange the equation to}\ ax+b>0\\7x-21>4x\\7x-4x-21>0\\3x-21>0\\\text{Solving for x.}\\3x>21\\x>\dfrac{21}{3}\\\boxed{\bold{x>7}}[/tex]

Hence, the solution is x>7.

Next, we graph the equation by plotting its solution in the cartesian plane. Since it is inequality, we will use a dashed line (----) instead of a solid line. See the attached image for the graph.

View image Aenah

Solving 7x - 21 > 4x

Solution:

Add 21 to both sides

7x - 21 + 21 > 4x + 21

= 7x > 4x + 21

Subtract 4x from both sides

7x - 4x > 4x - 4x + 21

= 3x > 21

Divide both sides by 3

[tex]\tt\frac{3x}{3}>\frac{21}{3}[/tex]

[tex]\large\tt\color{blue}\boxed{x > 7}[/tex]

"See the picture for the graph"

[tex]\large{•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••}[/tex]

#CarryOnLearning

View image Аноним
Maraming salamat sa iyong aktibong pakikilahok. Magpatuloy sa pagtatanong at pagbahagi ng iyong mga ideya. Sama-sama tayong lumikha ng isang mas matibay at produktibong komunidad ng kaalaman. Bumalik ka sa IDNStudy.com para sa maasahang mga sagot sa iyong mga katanungan. Salamat sa iyong tiwala.