X=-6
If you divide both sides by -5 5/5 is 0 & 20/5 is 4 the next step is to subtract 2 from both sides. -4-2 is -6
Answer:
4x - 3y = 0
Step-by-step explanation:
Children : 144
Adults : 51
Explanation
Step 1
Set the equations
let
x represents the number of children
y represents the number of adults
charge per child:8
charge per adult:11
total people:195
then
a)the total people is 195, so

b) the total bill was $1713,so
total childrend +total adults=173
but,
total adults cost= rate*number of adults
total children cost= rate*number of childe
replacing

Step 2
solve the equations,

a) isolate the x value from equation 81) and replace in eqaution (2)

replace in equation (2)

therefore, the number of adults is 51
b) now, replace the y value into equation (1) to find x

so, the number of children is 144
I hope this helps you
Answer:
mass of substance A=1.789
mass of substance B=2.185
now,
mass of substance B - mass of substance A
=2.185-1.789
=0.396
hence
mass of substance B is 0.396 gram greater than the mass of substance A
The answer is 1 + 4 = 5 + 4= 9 + 4 = 13 + 4 = 17 + 4 = 21 + 4 = 25