When solving a system by substitution, one should

1 answer:

6 0

B, because to substitute for a variable you have to have an equation to substitute first.

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Alex17521 [72]

3.8 is the answer you already figured it out

8 0

3 years ago

Sedaia [141]

Answer:

x = 4.

Step-by-step explanation:

These are exterior alternate angles which are congruent.

So 21x + 6 = 90

21x = 84

x = 4.

8 0

2 years ago

Serhud [2]

Answer:

is all the equations together or you need to solve each seperately?

8 0

3 years ago

Oxana [17]

Answer:

I believe it is 92.

Step-by-step explanation:

First, the 17 would be the top of the rectangle. Then, the 2 cm plus 3 cm plus 7 is 12 times the 17. ;-;

3 0

3 years ago

Lisa [10]

Answer:1588

Step-by-step explanation:

4 x 397 = 1588

7 0

2 years ago