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x=7-8
=-1
2.y÷5=-12
y=-12×5
=-60
3.2a+5=5
2a=0
a.=0
4.18=10-2m
2m=10-18
2m=-8
m =-4
5.3a-2=a+18
2a. =20
a. =10
x = 7 - 8
x = -1
2. y ÷ 5 = -12
y = -12 × 5
y = -60
3. 2a + 5 = 5
2a = 5 - 5
2a = 0
a = 0
4. 18 = 10 - 2m
2m= 10 - 18
2m= -8
m = -4
5. 3a - 2 = -a + 18
3a + a= 18+ 2
4a= 20
a = 5