3 years ago

Which equation shows the substitution method being used to solve the system of linear equations?

Mathematics

1 answer:

stealth61 [152]3 years ago

3 0

A. (y+3)-y = 7 is the correct answer

You might be interested in

Evaluate 8(a +b) when a = 5 and b = 11

algol13

Answer:

Hi there

your answer is 128

Step-by-step explanation:

8(5+11)

8 0

3 years ago

Read 2 more answers

PICK ON OF THE FOLLOWING! (imagine attached)

Aleks04 [339]

Answer:

Step-by-step explanation:

7 0

2 years ago

Write the equation of a line that is perpendicular to x=3x=3x, equals, 3 and that passes through the point (0,-4)(0,−4)left pare

leva [86]

Answer: $x+3y=12$

Step-by-step explanation:

Slope of two lines that are perpendicular to each other is 1.

If one line is $y=3x$ , then its slope = 3 [by comparing to the linear equation y= mx+c, here m=3]

Let n be the slope of the required line, then

$n\times3=-1\\\\\rightarrow\ n=\dfrac{-1}{3}$

Equation of line with slope n and passers through (a,b) is

$(y-b)=n(x-a)$

Equation of line with slope n= $\dfrac{-1}{3}$ and passes through point ( 0,-4) :

$(y-(-4))=\dfrac{-1}{3}(x-0)\\\\\Rightarrow\ y+4=\dfrac{-1}{3}x\\\\\Rightarrow\ -3(y+4)=x\\\\\Rightarrow-3y-12=x\\\\\Rightarrow x+3y=12$

Hence, Required equation : $x+3y=12$

8 0

3 years ago

Help!!!!!!<br> Please and thank you

fenix001 [56]

Answer:

1. A

2. B

3. A

Step-by-step explanation:

Hope this helps!

5 0

3 years ago

Simplify each expression 6x + 2x

Gelneren [198K]

Answer: 8x

Step-by-step explanation: add it normally but carry the x

7 0

3 years ago

Read 2 more answers