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2 years ago

How many solutions does this have? y=5x+-2 y=5--2x

Mathematics

1 answer:

Delvig [45]2 years ago

5 0

Answer:

one solution (2.333, 9.6666)

Step-by-step explanation:

The ys have to be equal for there to be 1 solution. Let's see if they are. Equate the ys. - -2x becomes 2x

5x +-2 = 2x + 5 Write the left with 1 sign

5x - 2 = 2x + 5 Subtract 2x from both sides

2x 2x

3x - 2 = 5 Add 2 to both sides

2 2

3x = 7 Divide by 3

x = 7/3

x = 2 1/3

y = 5x - 2

y = 5(2 1/3) - 2

y = 11 2/3 - 2

y = 9 2/3

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