(Re) Salut !
a.
[tex]3x=9\\x= 3[/tex]
b.
[tex]5y=3y\\y = \frac{3}{5} \\y=0.6[/tex]
c.
[tex]4z=-7\\z = \frac{-7}{4} \\z = -1.75[/tex]
d.
[tex]-2z=-8\\2z=8\\z=4[/tex]
e.
[tex]7x=4\\x=\frac{4}{7}[/tex]
f.
[tex]-y=-7.2\\y=7.2[/tex]
g.
[tex]-y=15.7\\y=-15.7[/tex]
h.
[tex]4.4z = 0\\z = 0[/tex]
i.
[tex]2.7x=-1.2\\x = \frac{-1.2}{2.7}[/tex]
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(Re) Salut !
a.
[tex]3x=9\\x= 3[/tex]
b.
[tex]5y=3y\\y = \frac{3}{5} \\y=0.6[/tex]
c.
[tex]4z=-7\\z = \frac{-7}{4} \\z = -1.75[/tex]
d.
[tex]-2z=-8\\2z=8\\z=4[/tex]
e.
[tex]7x=4\\x=\frac{4}{7}[/tex]
f.
[tex]-y=-7.2\\y=7.2[/tex]
g.
[tex]-y=15.7\\y=-15.7[/tex]
h.
[tex]4.4z = 0\\z = 0[/tex]
i.
[tex]2.7x=-1.2\\x = \frac{-1.2}{2.7}[/tex]