Answer:
37. {-1, -1}.
Step-by-step explanation:
I'll solve the first one . The other can be solved in a similar way. We can use the method of elimination.
x1 - x2 = 0
3x1 - 2x2 = -1
We can multiply the first equation by -2. We then have an equation containing + 2x2 so when we add this to the second equation the 2x2 will be eliminated
So the first equation becomes:
-2x1 + 2x2 = 0 Bring down the second equation:
3x1 - 2x2 = -1 Now adding, we get:
x1 + 0 = -1
so x1 = -1.
Now we substitute this value of x1 in the original first equation:
-1 - x2 = 0
-1 = x2
x2 = -1.
So the solution set is {-1, -1}.
If there are more than 2 equations you can use a combination of substitutions and eliminations.
35/8 = 4.376 5/3 = 1.666… 4.376/1.666…
Therefore 2.625 pieces
Step-by-step explanation:
try adding them together that'll make sense duh lol
For this case we have the following equation:
We must clear the variable "x":
We multiply by 2 on both sides of the equation:
We divide by h on both sides of the equation:
We subtract "a" on both sides of the equation:
Answer:
