Answer:
2) x = -21
3) x = 12
Step-by-step explanation:
Solution :
In both questions we need to find the value of x. So, let's solve!
2) x/-3 + 5 = 12
[tex] \implies{\sf{\dfrac{x}{ - 3} + 5 = 12}}[/tex]
[tex] \implies{\sf{\dfrac{x}{ - 3}= 12 - 5}}[/tex]
[tex] \implies{\sf{\dfrac{x}{ - 3}= 7}}[/tex]
[tex] \implies{\sf{x = 7 \times - 3}}[/tex]
[tex] \implies{\sf{x = - 21}}[/tex]
[tex]\star \: \: {\underline{\boxed{\tt{\red{x = - 21}}}}}[/tex]
Hence, the value of x is -21.
[tex]\begin{gathered}\end{gathered}[/tex]
3) 3/4x - 5 = 4
[tex]{\implies{\sf{\dfrac{3}{4}x + 5 = 4}}}[/tex]
[tex]{\implies{\sf{\dfrac{3}{4} \times x= 4 + 5}}}[/tex]
[tex]{\implies{\sf{\dfrac{3x}{4} = 9}}}[/tex]
[tex]{\implies{\sf{x = 9 \times \dfrac{4}{3}}}}[/tex]
[tex]{\implies{\sf{x = \cancel{9}\times \dfrac{4}{\cancel{3}}}}}[/tex]
[tex]{\implies{\sf{x = 3 \times 4}}}[/tex]
[tex]{\implies{\sf{x = 12}}}[/tex]
[tex]\star \: \: {\underline{\boxed{\tt{\red{x = 12}}}}}[/tex]
Hence, the value of x is 12.
[tex]\rule{300}{2.5}[/tex]
