3 years ago

Solving by the substitution method y=3x+7 y-5x+8

Mathematics

1 answer:

Sveta_85 [38]3 years ago

6 0

3x+7-5x=8
-2x+7=8
-2x=1
X=-1/2
y=3(-1/2)+7
y=-1.5+7
y=5.5

You might be interested in

Simplify 3x+5y-x+2y please

V125BC [204]

Answer:

2x+7y

Step-by-step explanation:

3x+5y-x+2y =

3x-x = 2x

5y+2y = 7y

3x+5y-x+2y = 2x+7y

5 0

3 years ago

Six more than nine times a number is -7

emmainna [20.7K]

It should be no solution

4 0

3 years ago

Identify intervals on which the function is increasing, decreasing, or constant. g(x) = 4 - (x - 6)2 (5 points)

leva [86]

Answer:

g(x) is always decreasing

Step-by-step explanation:

Step 1: Distribute

g(x) = 4 - (2x - 12)

g(x) = 4 - 2x + 12

Step 2: Combine like terms

g(x) = -2x + 16

Since the line is linear and has a negative slope, it will always decrease when you input either a positive or negative x value. The output y will go lower.

4 0

3 years ago

The ordered pair given in the bottom row can be written using function notation as

Over [174]

where is the ordered pair?

8 0

3 years ago

Read 2 more answers

Use the number chart to answer the questions. Circle each number you find. You can only use digits that are next to each other t

NARA [144]

Answer:

row - F
column - K
column - S
row - B
column - K
column - G

Step-by-step explanation:

1. The least four digit number found in the rows is : 1164

The row is F

2. The maximum number of digits in counting order is : 1 3 5 7 9

The column is K

3. The highest 3 digit number in a column is 992

The column is S

4. The palindrome with greatest number of digits is 7117

The row is B

5. The greatest number of odd numbers in counting order is : 1 3 5 7 9

The column is K

6. The palindrome with greatest number of digits is 235532

The column is G

7 0

3 years ago