2(a+3)=30-a
2a + 6 = 30 – a
2a + a = 30 – 6
3a = 24
a = 8
45-2(3x-8)=25
45 – 6x + 16 = 25
– 6x = 25 – 16 – 45
-6x = -36
x = 6
2(a+3)=30-a
2a + 6 = 30 – a
2a + a = 30 – 6
3a = 24
a = 8
45-2(3x-8)=25
45 – 6x + 16 = 25
– 6x = 25 – 16 – 45
-6x = -36
x = 6