1) 9b+6b-15=615
9b + 6b = 615 + 15
15b = 630
b = 42
2) 2a+123a+97=472
2a + 123a = 472 – 97
125a = 375
a = 3
3) 17x-x+5x-19=170
17x – x + 5x = 170 + 19
21x = 189
x = 9
4) 73y-y-22y+40=190
73y – y – 22y = 190 – 40
50y = 150
y = 3
1) 9b+6b-15=615
9b + 6b = 615 + 15
15b = 630
b = 42
2) 2a+123a+97=472
2a + 123a = 472 – 97
125a = 375
a = 3
3) 17x-x+5x-19=170
17x – x + 5x = 170 + 19
21x = 189
x = 9
4) 73y-y-22y+40=190
73y – y – 22y = 190 – 40
50y = 150
y = 3