Your income is the money you receive or acquire it's the inflow and your total expenses are the money you spent it's the outflow
Solve for n
Simply both sides 11(n-1)+35=3n
Distribute (11)(n) + (11)(-1) + 35 = 3n
11n+-11+35=3n
Combine like terms (11n)+(-11+35)=3n
11n + 24 =3n
Subtract 3n from both sides
11n+24-3n=3n-3n
8n + 24 = 0
Subtract 24 from both sides
8n+24-24=0-24
8n = -24
Divide both sides by 8
8n = -24
8 8
n = -3
X= width
length= 3x-7
Area: (x)(3x-7)=40
= 3x^2-7x=40
= 3x^2-7x-40=0
Factorise the equation: (3x+8)(x-5)=0
x=-8/3 (reject because width cannot be negative) or x=5
so width is 5cm and length is 3(5)-7= 8cm !
Answer:
Step-by-step explanation:
Let numbers be x and y
<u>Then we have equations:</u>
<u>Comparing</u>
- 4y = y + 87
- 4y - y = 87
- 3y = 87
- y = 87/3
- y = 29
<u>Then, the larger number is</u>
