Exercícios matemáticos
1. 5x-5=18
2. -4y-18=30
3. -3z+3=15
4. 5*+12= -3
5. -y+5=5
6. -n+3= -3
7. 25x-15=10
8. 12y+4=16
1. 5x-5=18
2. -4y-18=30
3. -3z+3=15
4. 5*+12= -3
5. -y+5=5
6. -n+3= -3
7. 25x-15=10
8. 12y+4=16
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5x=23
X=23÷5
2)-4y=30+18
-4y=48
-y=48÷4
-y=12
Y=-12
3)-3z=15-3
-3z=12
-z=12÷3
-z=4
Z=-4
4)5y=-12-3
5y=-15
Y=-15÷5
Y=-3
5)-y=5-5
-y=0
Y=-0
6)-n=3-3
-n=0
N=-0
7)25x=10+15
25x=25
X=25÷25
X=1
8)12y=16-4
12y=12
Y=12÷12
Y=1