2 years ago

9a-2b = -8 -7a + 3b = 12

1 answer:

7 0

9a-2b=-8.....1
-7a+3b=12.....2

So,
1 equation into 3 and 2 equation into 2.

Then,
18a-6b=-24
-14a+6b=24.

4a=0 a=0 .

Substitute a value in 2 equation.

b=4.

Hope it helped

You might be interested in

Please help. Thank you.

Jobisdone [24]

Answer:

1. 7

2. 100000000

Check the above picture

5 0

3 years ago

Read 2 more answers

An examination consisting of ten true-or-false questions was taken by a class of 100 students. The probability distribution of t

Grace [21]

Answer:

The height of this rectangle is 8/10

Step-by-step explanation:

Please see attachment .

4 0

2 years ago

If you spin the spinner 7 times,what is the best prediction possible for the number of times it will land on pink?

Tems11 [23]

Depends how many times pink is on the spinner you put the number of pink spaces there is at the top out of seven for example a fraction 3/7

8 0

2 years ago

I have been stuck on this question please help

Hatshy [7]

Answer:

3⁷

Step-by-step explanation:

(3⁴)⁻² * (3⁵)³ =
3⁴⁽⁻²⁾*3⁵⁽³⁾ =
3⁻⁸*3¹⁵ =
3⁻⁸⁺¹⁵ =
3⁷

Correct option is B. 3⁷

3 0

2 years ago

What’s the equation of the line in fully simplified slope-intercept form

Vinil7 [7]

Answer:

y= -x - 8

Step-by-step explanation:

To write an equation in slope-intercept form, we naturally need both the slope and the y-intercept. Here, our y-intercept is -8, and our slope is -1. The general form of a line in slope intercept form is y = mx + b, where m is the slope and b is the y intercept. Using our values of m = -1 and b = -8 then gives us the equation y = -x - 8.

6 0

2 years ago