1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lara31 [8.8K]
3 years ago
9

-3x + y = 22 -12x – 10y=-10

Mathematics
1 answer:
dimaraw [331]3 years ago
8 0

Answer:

<h3>               x = -5,  y = 7</h3>

Step-by-step explanation:

-3x + y = 22     ⇒  y = 3x + 22

-12x - 10y = -10  and  y = 3x + 22

-12x - 10(3x + 22) = -10

-12x - 30x - 220 = -10

               +220       +220

 - 42x  = 210  

 ÷(-42)     ÷(-42)

    x = -5

y = 3(-5) + 22 = -15 + 22 = 7

You might be interested in
5. What is the solution to the equation -2.5(x-4)=-3x+4?​
lana66690 [7]

Answer:

x = -12

Step-by-step explanation:

-2.5(x-4)=-3x+4

Distribute

-2.5x +10 = -3x +4

Add 3x to each side

-2.5x+10 +3x = -3x+4+3x

.5x +10 = 4

Subtract 10 from each side

.5x+10-10=4-10

.5x = -6

Divide by .5

.5x/.5 = -6/.5

x = -12

6 0
3 years ago
Read 2 more answers
Someone please help me with this
ohaa [14]

the answer is 2.7. 5.0 - 2.3 = 2.7

5 0
3 years ago
How many complex roots does the polynomial equation below have?
erastova [34]

Answer:

4.

Step-by-step explanation:

I will have one real root = fifth root of 3.

As it has a total of 5 roots ( By the Fundamental Theorem of Algebra) then it must have 4 complex roots.

5 0
3 years ago
Consider the line y=2x-8.
professor190 [17]

Answer:

The slope of a parallel line is 2.

The slope of a perpendicular line is: -1/2

Step-by-step explanation:

The slope of the line y=2x-8  is 2.

Parallel lines has the same slope.

Perpendicular lines has the negative reciprocal of the slope.

3 0
3 years ago
Read 2 more answers
Solve: please answer as fast as possible <br><br> -2 + 6 &lt; 4
Naya [18.7K]
-2 + 6 < 4 equals 4 < 4.

First, simplify -2 + 6 to get 4. / Your problem should look like: 4 < 4.

If you are looking for the solution to this problem, there is none since 4 < 4 is false.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Write and solve an equation based off the verbal phrase <br> The quotient of x and 5 is equal to 35
    11·2 answers
  • PLEASE HELP!
    13·2 answers
  • I have 54 oranges. I give 28 away and saved 5 for my family. How many oranges do I have?
    7·2 answers
  • 7. Use the properties of operations to simplify this algebraic expression. Rewrite the expression by following the directions in
    9·1 answer
  • What must be true about the discriminant of this quadratic equation for the mentioned values of k? Assume p&gt;0.
    6·1 answer
  • The product of x and y is less than or equal to 4
    11·1 answer
  • Solve for w make sure. (36 divide 3) (2x6) = w
    15·1 answer
  • Can anyone help with this? 20 points
    12·1 answer
  • Select the compound inequality shown on the graph.
    9·1 answer
  • What is the slope of the line that passes through these points in decimal form
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!