bsr
28
3y - 2 = 5y
3y - 5y = 2
-2y = 2
y = -1
y² = 6 y
y = 6
2y = y/5 + 9
2y - y/5 = 9
10y - y = 45
9y = 45
tu peux finir
29
-3 + x = 7
les x à gauche, les constantes à droite
x = 7 + 3 = 10
5x = 19
x = 19/5
3x + 7x = 50
10x = 50 tu peux finir
x + 8 = 11
x = 11 - 8 = 3
-2x = 9
x = -9/2
-4x+9x = 45
5x = 45
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bsr
28
3y - 2 = 5y
3y - 5y = 2
-2y = 2
y = -1
y² = 6 y
y = 6
2y = y/5 + 9
2y - y/5 = 9
10y - y = 45
9y = 45
tu peux finir
29
-3 + x = 7
les x à gauche, les constantes à droite
x = 7 + 3 = 10
5x = 19
x = 19/5
3x + 7x = 50
10x = 50 tu peux finir
x + 8 = 11
x = 11 - 8 = 3
-2x = 9
x = -9/2
-4x+9x = 45
5x = 45
tu peux finir