👤

Sagot :

Bonsoir,

a)

[tex]5t-8.2 = 55\\5t=55+8.2\\t=\frac{63.2}{5}[/tex]

b)

[tex]5x-9=3x-25\\5x=3x-25+9\\5x=3x-16\\2x=-16\\x=\frac{-16}{2} \\x=-8[/tex]

Bonne soirée

Other Questions

© 2024 IDNLearn. All rights reserved.