3y+9y=24
18y=24
y=24-18
y=6
3y + 9y = 24
12y = 24
y = 2
4a + 7a = 22
11a = 22
a = 2
17m - 8m = 36
9m = 36
m = 4
4x + 10x - 13 =
3a + 16 + a - 8 = 20
4a = 12
a = 3
3y+9y=24
18y=24
y=24-18
y=6
3y + 9y = 24
12y = 24
y = 2
4a + 7a = 22
11a = 22
a = 2
17m - 8m = 36
9m = 36
m = 4
4x + 10x - 13 =
3a + 16 + a - 8 = 20
4a = 12
a = 3