Answer:
9 (m+5)-3(m-2)=8m+31
9m+45 - (3m + 6)= 8m+31
9m+45-3m-6=8m+31
45-6+31=8m-9m+3m
70=2m
m=70/2
Therefore m = 35
Hope u understood.............
I think the answer is substitution property of equality because you are substituting 9 for y as y=9.
There are 20 people in the class room.
One way I set this word problem up is by using the equation 88-4x=8. X would stand for the amount of classmates in the class, 88 would stand for your total pieces of gum and 8 would stand for the remaining pieces left.
With the equation 88-4x=8 you want to subtract 88 from both sides to get the equation -4x=-80. Last you want to isolate x by dividing -4 on both sides to finally get x=20. 20 people in the class room.
Answer:
Jane pays £1.12 for 200g of cheese
Step-by-step explanation:
1kg = 1000g = £5.60
200g = x
x = (200 × 5.60)/1000
x = 1120/1000
x = £1.12
You could change the y intercept to something less than positive eight.
