Answer: 33 math problems.
Step-by-step explanation:
Let x = Number of math problems
y= Number of history problems
According to the question , we have
We can rewrite (i) as 
(iii)
Now, subtract (iii) from (ii), we get
Put this in (i), we get
Hence, you have to complete 33 math problems.
It’s the one you picked D
Answer:
(x-3)/9
Step-by-step explanation:
STEP
1
:
-x
Simplify ——
3
Equation at the end of step
1
:
(3 - x) -x
——————— • ——
3x 3
STEP
2
:
3 - x
Simplify —————
3x
Equation at the end of step
2
:
(3 - x) -x
——————— • ——
3x 3
STEP
3
:
Canceling Out :
3.1 Canceling out x as it appears on both sides of the fraction line
Final result :
x - 3
—————
9
hope this helps!!
Answer:
x=0
Step-by-step explanation:
add 3 to both sides
subtract 4 from both sides
Answer:
x = -3 and y = -5
Step-by-step explanation:
2x - y = -1 ⇒ y = 2x + 1
Substitute this into 3x - 2y = 1 to solve for x:
3x - 2(2x + 1 ) = 1 ⇒ 3x - 4x - 2 = 1 ⇒ -x = 3 ⇒ x = -3
Now sub the value you found for x into y = 2x + 1 to find y:
y = 2(-3) + 1 = -5
So x = -3 and y = -5
