3 years ago

Can you solve these and explain. 4x + 6 < -6. - 2/5 x-9 < 9/10

Mathematics

1 answer:

Elena L [17]3 years ago

3 0

4x + 6 < -6

subtract 6 from each side

4x < -12

divide by 4

x < -3

- 2/5 x-9 < 9/10

multiply each side by 10 to get rid of the fractions

10*(- 2/5 x-9) < 10*9/10

distribute

-4x -90 <9

add 90 to each side

-4x < 99

divide by -4 (which flips the inequality)

x> -99/4

x> -24 3/4

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Step-by-step explanation:

The given equations are

$2x-5y=14$ .... (1)

$x+\frac{3}{2}y=5$ .... (2)

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Subtract equation (1) from equation (3).

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Put this value in equation (1).

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