3 years ago

I need x+y=5 and y=2x-4solved algebraically

Mathematics

2 answers:

ipn [44]3 years ago

7 0

X=3, y=2 solved algebraicly

schepotkina [342]3 years ago

4 0

Answer:

x = 3; y = 2

Step-by-step explanation:

x + y = 5

y = 2x - 4

Isolate the y in the first equation

y = 5 - x

y = 2x - 4

Substitute the values

5 - x = 2x - 4

Isolate the Variable

9 = 3x

Simplify

3 = x

Plug that into the first equation

3 + y = 5

Subtract 3 from both sides

y = 2

You might be interested in

The sum of a number increased by three and the number decreased by seven

mash [69]

Answer is (n + 3) + (n - 7)

Simplified to 2n - 4

Using “n” for number

8 0

2 years ago

Heidi earns 3% commission on jewelry she sells each week last week she sold 5,000 worth of jewelry how much did she make in comm

Alex17521 [72]

3% commission of 5000 = $150

6 0

3 years ago

Tell whether the difference between two negative integers is always, sometimes, or never positive. The difference between two ne

babymother [125]

Answer:

. 2) It’s positive only if the first integer is greater

3 0

3 years ago

Read 2 more answers

A car and a motor bike are priced at $23440. If the value of the car is four times the value of the motor bike, how much is the

LenKa [72]

x + y = 23440

x = 4y

y = ?

23440 / 5 = 4688

y = $4688

6 0

2 years ago

Which of the following could represent the unit side lengths of a right triangle

snow_lady [41]

Answer:

Choice D

Step-by-step explanation:

If you check each one plugging in your info into this you can get $a^{2} +b^{2} =c^{2}$ that 12² + 16² will equal 400 which is the same as 20².

4 0

3 years ago

Read 2 more answers