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tester [92]
3 years ago
7

-2x + y = 4 y = x + 2 Third question^ solve the system of equations

Mathematics
1 answer:
Leya [2.2K]3 years ago
6 0

Answer:

x=-2 y=0

Step-by-step explanation:

put the second equation in to the first one

-2x+x+2=4

-x=2

x=-2

y=-2+2=0

x=-2 y=0

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Can someone please give me the answer I will be marking <br> u brilliant
ElenaW [278]

Answer: - 1/5

Step-by-step explanation:

-1/3= -0.333333

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-1/5= -0.2

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7 0
3 years ago
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An 8-foot ladder is leaning against a wall. The top of the ladder is 5.5 feet from the ground.
Kobotan [32]

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3 years ago
Solve for X <br><br>Explain if possible :)
sweet-ann [11.9K]

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From this result you can build the equation

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Check: if we plug the value we found we have

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4 0
3 years ago
Solve p=10a+3b for a
Gre4nikov [31]

Answer:

a = (p - 3b)/10

Step-by-step explanation:

Isolate the variable, a. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS (Parenthesis, Exponents (& roots), Multiplication, Division, Addition, Subtraction).

p = 10a + 3b

First, subtract 3b from both sides.

p (-3b) = 10a + 3b (-3b)

p - 3b = 10a

Next, isolate the a. Divide 10 from both sides.

(p - 3b)/10 = (10a)/10

(p - 3b)/10 = a

a = (p - 3b)/10 is your answer.

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