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Solve for the value of x
5x + 10 = 3x - 20


Sagot :

Solve for the value of x

[tex]\large\bold\blue{\tt{SOLUTION:}}[/tex]

[tex] \large \tt5x + 10 = 3x - 20 \\ \\ \large \tt5x - 3x = - 20 - 10 \\ \\ \large \tt2x = - 30 \\ \\ \large \tt \frac{2x}{2} = \frac{ - 30}{2} \\ \\ \large{ \boxed{ \tt{x = - 15}}}[/tex]

[tex]\large\bold\blue{\tt{CHECKING:}}[/tex]

if x = –15

[tex] \large \tt5x + 10 = 3x - 20 \\ \\ \large \tt5( - 15) + 10 = 3( - 15) - 20 \\ \\ \large \tt - 75 + 10 = - 45 - 20 \\ \\ \large \tt - 65 = - 65 \\ \\ true[/tex]

[tex]\large\bold\blue{\tt{FINAL\:ANSWER:}}[/tex]

[tex]\Huge\bold\red{\boxed{\tt{x=–15}}}[/tex]

Answer:

5x+10=3x-20

5x-3x=-10-20

2x= - 30

2x/2=-30/2

X=-15

Check;(subtitute the value of x)

5x+10=3x-20

5(-15)+10=3(-15)-20

- 75+10= - 45-20

- 65=-65

Hope its help