That would be the commutative property
The solution of the system of equations is (-1 , -1)
Step-by-step explanation:
To solve the system of linear equations by substitution method
- Use one of the two equation to find one variable in terms of the other terms
- Substitute this variable in the second equation to find an equation of one variable
- Solve the equation to find the this variable
- Find the first variable using the substitution equation
∵ x + y = -2 ⇒ (1)
∵ y = 4x + 3 ⇒ (2)
- Substitute y in equation (1) by equation (2)
∴ x + (4x + 3) = -2
- Add like terms
∴ (x + 4x) + 3 = -2
∴ 5x + 3 = -2
- Subtract 3 from both sides
∴ 5x = -5
- Divide both sides by 5
∴ x = -1
- Substitute the value of x by -1 in equation (20 to find y
∴ y = 4(-1) + 3
∴ y = -4 + 3
∴ y = -1
The solution of the system of equations is (-1 , -1)
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Answer:
63+7x=150
Step-by-step explanation:
x = weeks?
Vertical asymptotes can be found from the denominator, because denominators cannot be equal 0.
x²-16=0
(x-4)(x+4)=0
x=4, x=-4
x cannot be 4 or -4,
So vertical asymptotes
x=4 , x=-4
Answer:
they are the same ratios written in different forms and it also states that they are all the same
