Answer:
30 is correct answer. ... ...........
Answer:
1/4,1/3,8/16,5/9
Step-by-step explanation:
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Answer:
(2, - 4 )
Step-by-step explanation:
Given the 2 equations
x + 2y = - 6 → (1)
3x + y = 2 → (2)
Multiplying (2) by - 2 and adding to (1) will eliminate the term in y
- 6x - 2y = - 4 → (3)
Add (1) and (3) term by term to eliminate y
- 5x = - 10 ( divide both sides by - 5 )
x = 2
Substitute x = 2 into either of the 2 equations and solve for y
Substituting into (1)
2 + 2y = - 6 ( subtract 2 from both sides )
2y = - 8 ( divide both sides by 2 )
y = - 4
Solution is (2, - 4 )
Answer:
Nico, Raj and Sandra are correct
Step-by-step explanation:
we have

<em>Method 1</em>
Solve for x
That means ----> isolate the variable x
we have

Multiply by 5/2 both sides


subtract 6 both sides


<em>Method 2</em>
Solve for x
That means ----> isolate the variable x
we have

Multiply by 1/2 both sides


Multiply by 5 both sides


subtract 6 both sides


<em>Method 3</em>
Solve for x
That means ----> isolate the variable x
we have

Apply distributive property left side


subtract 2 both sides


Multiply by 5/2 both sides


therefore
Nico, Raj and Sandra are correct