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3 years ago

How do you solve 3x+3y=-15 and -3x+y=3

Mathematics

1 answer:

Lilit [14]3 years ago

3 0

Answer:

Step-by-step explanation:

Substitute x and y values for zero. Or

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What is the value of x? 45° 2 (2x - 5) > n

Vladimir [108]

Answer:

70 degrees

Step-by-step explanation:

Find the diagram attached

The sum of the angles is supplementary that is

45 + 2x- 5 = 180

2x + 40 = 180

2x = 180 - 40

2x = 140

x = 140/2

x = 70

Hence the value of x is 70 degrees

4 0

3 years ago

If using the method of completing the square to solve the quadratic equation

hram777 [196]

Add 20 to complete the square

4 0

3 years ago

7/10 + 2/10 , 13/16+ 2/16 , 4/5 + 1/5 , 7/15 + 2/15 , 9/20 + 3/20 , 5/8 + 1/8 . All in simplist form.

blondinia [14]

Hello!

<h3><em><u>Answers</u></em></h3>

1. $\frac{7}{10} + \frac{2}{10} = \frac{9}{10}$ Simplest form: $\frac{9}{10}$

2. $\frac{13}{16} + \frac{2}{16} = \frac{15}{16}$ Simplest form: $\frac{15}{16}$

3. $\frac{4}{5} + \frac{1}{5} = \frac{5}{5}$ Simplest form: $\frac{1}{1}$

4. $\frac{7}{15} + \frac{2}{15} = \frac{9}{15}$ Simplest form: $\frac{3}{5}$

5. $\frac{9}{20} + \frac{3}{20} = \frac{12}{20}$ Simplest form: $\frac{3}{5}$

6. $\frac{5}{8} + \frac{1}{8} = \frac{6}{8}$ Simplest form: $\frac{3}{4}$

<h3><em><u>Explanation:</u></em></h3>

Simply add the numerators of the like fractions together. The denominators remain the same.

4 0

2 years ago

-24+15-6=x

suter [353]

Answer:

x = -15

Step-by-step explanation:

-24 + 15 - 6 = x

-9 - 6 = x

-15 = x

4 0

3 years ago

Read 2 more answers

Please help me answer this

Solnce55 [7]

Answer:

i think you got that right its negative

Step-by-step explanation:

7 0

2 years ago