Bonsoir,
a. x + 6 = 8
x = 8 - 6
x = 2
b. t - 7 = 3
t = 3 + 7
t = 10
c. y + 11 = 10
y = 10 - 11
y = - 1
d. 1 + x = - 2
x = - 2 - 1
x = - 3
e. t - 5 = - 3 (on ne voit pas bien)
t = - 3 + 5
t = 2
f. - 3 + y = - 2
y = - 2 + 3
y = 1.
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Bonsoir,
a. x + 6 = 8
x = 8 - 6
x = 2
b. t - 7 = 3
t = 3 + 7
t = 10
c. y + 11 = 10
y = 10 - 11
y = - 1
d. 1 + x = - 2
x = - 2 - 1
x = - 3
e. t - 5 = - 3 (on ne voit pas bien)
t = - 3 + 5
t = 2
f. - 3 + y = - 2
y = - 2 + 3
y = 1.