How do you know that substitution gives the answer to a system of equations?

1 answer:

3 0

It gives the answer to a system of equations because it explains it

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finlep [7]

Answer:

$950

Step-by-step explanation:

x+70=1020 so subtract 70 from both sides

x=950 cost of dryer

1020-950=70 washer is 70 more than dryer

6 0

3 years ago

Serhud [2]

Is this a multiple choice

4 0

3 years ago

Naddik [55]

Answer:

maybe a

Step-by-step explanation:

8 0

3 years ago

shusha [124]

answer:

number 4

Step-by-step explanation:

24 ? 8×3=24

8 0

4 years ago

MissTica

Answer:

x = 1/2

Step-by-step explanation:

$- 3x + 1 + 10x = x + 4 \\ - 3x + 10x - x = 4 - 1 \\ ( - 3 + 10 - 1)x = 3 \\ 6x = 3 \\ x = \frac{3}{6} = \frac{1}{2} \\ x = \frac{1}{2}$

3 0

3 years ago