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Ksju [112]
3 years ago
12

(1,1),(-1,0) 2x+y=3 X-2y=-1 Each pair of a solution of the system of linear equations

Mathematics
1 answer:
kotykmax [81]3 years ago
7 0
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Write the equation of the line that has a slope of -5 and a y intercept of 7
Elza [17]

Answer:

y = -5x +7

Step-by-step explanation:

slope intercept form of the equation is

y= mx+b

where m is the slope and b is the y intercept

y = -5x +7

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Which expression is a way to represent the ratio of a to b?<br>obia<br>ob to a​
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Answer:23

Step-by-step explanation:

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Morgarella [4.7K]

Answer:

d. (9,-260°)

Step-by-step explanation:

100° = 100-360 = -260°

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2 years ago
Solve 4x + 1 = 3 – 2x
romanna [79]

Answer:

x = 1/3

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS
  • Equality Properties

Step-by-step explanation:

<u>Step 1: Define equation</u>

4x + 1 = 3 - 2x

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Add 2x on both sides:                    6x + 1 = 3
  2. Subtract 1 on both sides:                6x = 2
  3. Divide 6 on both sides:                   x = 1/3

<u>Step 3: Check</u>

<em>Plug in x to verify it's a solution.</em>

  1. Substitute:                    4(1/3) + 1 = 3 - 2(1/3)
  2. Multiply:                        4/3 + 1 = 3 - 2/3
  3. Add/Subtract:               7/3 = 7/3

Here we see that 7/3 does indeed equal 7/3.

∴ x = 1/3 is a solution of the equation.

7 0
3 years ago
Read 2 more answers
Simplify the expression:<br> 10s+–2s
likoan [24]

Answer:

8s

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Terms

Step-by-step explanation:

<u>Step 1: Define</u>

10s + -2s

<u>Step 2: Simplify</u>

  1. Rewrite:                               10s - 2s
  2. Combine like terms:           8s
3 0
3 years ago
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