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vitfil [10]
3 years ago
7

A. When solving the system of linear equations 6x+y = 1 and 7x+2y = -3 with substitution, it is easiest to first solve the equat

ion _6x+y=1_for_y_. When this is done, -y_ is equal to _6x+1
b. What is the solution to the system of linear equations in part a?

I need help with b​
Mathematics
1 answer:
nalin [4]3 years ago
3 0

Answer:

6x + y = 1

y = 1 - 6x

7x + 2(1 - 6x) = -3 substitute 1 - 6x in for y

7x + 2 - 12x = -3 combine like terms

2 - 5x = -3 subtract 2 from both sides

-5x = -5 divide by -5

x = 1

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3 years ago
Given:SW is diameter of circleR<br><br> m\overarc ST = 30\degree<br><br> Prove: RTW = 15\degree
Ostrovityanka [42]

Check the picture below.

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2 years ago
Truth or false every fraction has a limited number of equivalent frections .
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3 years ago
Read 2 more answers
Express the -0.345 in the form of p\q and reduce it to the lowest term​
Mamont248 [21]

Answer:

-69/200

Step-by-step explanation:

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In Fractional form (p/q)

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To simplify, divide the numerator and the denominator by the G.C.D(Greatest Common Divisor) of p and q.

In this case,G.C.D of 345 and 1000 is 5.

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3 0
3 years ago
The equation of line fis - 3y + 4x = 9 write the equation of a line that is parallel to line and passes through the point (- 12,
ollegr [7]

Answer:

y =  - 4x - 42

Step-by-step explanation:

The equation of the line that is parallel to the line we are trying to find is

- 3y + 4x = 9 \\ or \\  - 3y =  - 4x + 9 \:(standard form) \\ \\therefore \: the \: slope \: of \: the \: line \\  \: is \:  - 4

We can recall that when two lines are parallel it means that they have the same slope. Therefore the slope of the line we are trying to find is also -4. We now know that:

y = 6 \:  \:  \: x =  - 12 \:  \:  \: slope =  - 4

Therefore the equation of the line is:

y = mx + c \\  6= ( - 4)( - 12) + c \\ 6 = 48 + c \\ 6 - 48 = c \\  - 42 = c

y = mx + c \\ y =  - 4x - 42

3 0
2 years ago
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