3 years ago

Solve the equation and justify each step by stating the algebraic property use or what was done for each step.

1 answer:

3 0

5(3-x) + 3x = 6x -1

15-5x+3x = 6x-1

15-2x = 6x-1

2=x

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Ahat [919]

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3 years ago

never [62]

Answer:

Step-by-step explanation:

(7x - 1) + 79° = 21x + 8

• An exterior angle of a triangle is equal to the sum of its two interior opposite angles.

$(7x - 1) +79 = 21x + 8 \\ 7x - 1 + 79 = 21x + 8 \\ 7x + 78 = 21x + 8 \\ 78 - 8 = 21x - 7x \\ 70 = 14x \\ \frac{70}{14} = x \\ 5 = x \\$

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2 years ago

larisa86 [58]

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Because
1 x 891,
3 x 297,
9 x 99,
11 x 81,
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Hope I can help you :)

4 0

2 years ago