Solve the system using the elimination method.

2 answers:

Taya2010 [7]3 years ago

7 0

By adding the 1st and third equation together, you get rid of z and end with 7x+8y=13. The second equation will be the second equation and 2 times the first equation, so the will yield 3x+8y=1. Now, you solve this system of equations and get x3, y=-1, and z=-4

eimsori [14]3 years ago

4 0

Answer:

That's wrong...

Solve using determinants:

x + 4y − z = −14

5x + 6y + 3z = 4

−2x + 7y + 2z = −17

|A| = -120

|Ax| = -240

|Ay| = 360

|Az| = -480

x = 2

y = -3

z = 4

Step-by-step explanation:

Solving a 3 x 3 Linear System Using Cramer's Rule

You might be interested in

a bathtub mat is in the shape of a semicircle. the straight side of the mat is 24 in. What is the perimeter of the mat in terms

matrenka [14]

24 x 3.14= 75.36
75.36÷2=37.68

5 0

3 years ago

Use distributive property to create an equivalent expression to 7x + 56

OverLord2011 [107]

You will have to factor this equation. This means you have to find the lowest number that goes into both 7 and 56 (in other terms, gcf(7, 56)). You will put that as the leading coefficient in this factored term. gcf(7,56) = 7 so 7 will be leading coefficient. It will look somewhat like this 7(a + b) (a and b are just random variables representing what will go inside the parentheses). a and b can be determined by dividing each term in this expression by 7. Hence,
7x + 56 = 7(x + 8).This can obviously also be proven by the distributive property.

7 0

3 years ago

Read 2 more answers

F(x)=(x+1)(x+3)(x−4 the standard form of F(x)

olga55 [171]

Answer:

f(x)=x^3-13x-12

Step-by-step explanation:

4 0

3 years ago

an empty box weighs 5 ounces. Jenna puts 10 calculators in the box. The total weight of the box and calculators is 95 ounces. Cr

fenix001 [56]