Answer:
19 people were surveyed
Step-by-step explanation:
0 children = 3
1 child = 4
2 children = 5
3 children = 5
4 children = 2
3 + 4 = 7 + 10 = 17 + 2 = 19
3(x-7)+8=-20
Multiply the bracket by 3
(3)(x)(3(-7)+8= -20
3x-21+8= -20
3x-13= -20
Move -13 to the other side. Sign changes from -13 to +13.
3x-13+13= -20+13
3x= -7
Divide by 3
3x/3= -7/3
x= -7/3 or in mixed number : -2 1/3
Answer : x= -7/3 or in mixed number : -2 1/3
Answer:
Step-by-step explanation:
