Answer: x=- 17 / 8
Step-by-step explanation:
1
0
(
+
1
)
=
2
−
7
{\color{#c92786}{10(x+1)}}=2x-7
10(x+1)=2x−7
1
0
+
1
0
=
2
−
7
{\color{#c92786}{10x+10}}=2x-7
10x+10=2x−7
2
Subtract
1
0
10
10
from both sides of the equation
3
Simplify
4
Subtract
2
2x
2x
from both sides of the equation
5
Simplify
So
y=-10x-29 and y=-59
substitute the y in the equation for -59:
-59=-10x-29
add 29 on both sides
-30=-10x
divide both sides by -10
3=x
so,
x=3
(2x-1)×4=8x-4
I hope it helps ;)
Answer:

Step-by-step explanation:
Given




Required
Probability of selecting 2 nickels without replacement
This can be represented as: 
The solution is as follows

The second nickel is reduced by 1 because the first nickel was not replaced and this also reduces the total by 1
So, we have:





Answer:
x=5
Step-by-step explanation:
4x-10=10
4x=20
x=5