2(3x+4y) = 2(24)
6x+8y = 48
Add both the equations
6x + 8y = 48
+ x - 8y = -20
—————————
7x = 28
x = 28/7
x = 4
Plug in this value in the second equation
(4) - 8y = -20
-8y = -24
y = -24/-8
y = 3
Therefore:
x = 4
y = 3
Answer
39 bills of 1$
16 bills of 10$
Step-by-step explanation:
x-nr of $1
y-nr of $10
x*1+y*10=199
x+y=55 , x=55-y
so I use the substitution method
(55-y)*1+10y=199
55+10y-y=199
-55 -55
9y=144
y=144/9
y=16
so x=55-16
x=39
verify 16*10+39*1=160+39=199
Answer:
x = -5
y = -3
Step-by-step explanation:
i can give you step by step for brainliest if you want
Simplify the given expression as shown below
On the other hand,
Solving for y using the special triangle shown below
Thus,
Then,
The two sets of solutions are
<h2>Then, the four smallest positive solutions are</h2>
<h2>The answers are 1,5,13,17</h2>