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MArishka [77]
3 years ago
11

Which of the following are solutions to the inequality -7x+14>-3x-6? Select all that apply.

Mathematics
2 answers:
EastWind [94]3 years ago
8 0

Answer:

All real numbers less than 5 satisfy the inequality. The set of solutions of the inequality is the interval \left(-\infty \:,\:5\right).

Therefore, -10, -5, -3, 0, 3 are all valid solutions.

Step-by-step explanation:

Solving an inequality means finding all of its solutions. A solution of an inequality is a number which when substituted for the variable makes the inequality a true statement.

To find all the solutions for the inequality -7x+14>\:-3x-6 you must:

\mathrm{Subtract\:}14\mathrm{\:from\:both\:sides}\\-7x+14-14>-3x-6-14

\mathrm{Simplify}\\-7x>-3x-20

\mathrm{Add\:}3x\mathrm{\:to\:both\:sides}\\-7x+3x>-3x-20+3x

\mathrm{Simplify}\\-4x>-20

\mathrm{Multiply\:both\:sides\:by\:-1\:\left(reverse\:the\:inequality\right)}\\\left(-4x\right)\left(-1\right)

\mathrm{Simplify}\\\\4x

All real numbers less than 5 satisfy the inequality. The set of solutions of the inequality is the interval \left(-\infty \:,\:5\right).

Therefore, -10, -5, -3, 0, 3 are all valid solutions.

JulijaS [17]3 years ago
6 0

-7x+14>-3x-6

add 7x to each side

14> 4x-6

add 6 to each side

20>4x

divide by 4

5>x

x<5

solutions

3,0,-3,-5,-10

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