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Svetllana [295]
3 years ago
13

Solve the following inequalities 7 x minus 5 / 8 x + 3 >4​

Mathematics
2 answers:
olchik [2.2K]3 years ago
7 0

Answer:

x> \frac{8}{51}

Step-by-step explanation:

7x -  \frac{5}{8} x + 3>4

Bring constants to one side, simplify:

\frac{51}{8} x>4 - 3 \\  \frac{51}{8} x>1 \\ x>1 \div  \frac{51}{8}  \\ x>1 \times  \frac{8}{51}  \\ x> \frac{8}{51}

*Note that the inequality sign only changes when you divide the whole inequality by a negative number.

GREYUIT [131]3 years ago
7 0

Answer:

x>\frac{8}{51}

Step-by-step explanation:

7x-\frac{5}{8}x+3>4\\\mathrm{Subtract\:}3\mathrm{\:from\:both\:sides}\\7x-\frac{5}{8}x+3-3>4-3\\\mathrm{Simplify}\\7x-\frac{5}{8}x>1\\\mathrm{Multiply\:both\:sides\:by\:}8\\7x\times \:8-\frac{5}{8}x\times \:8>1\times \:8\\\mathrm{Simplify}\\56x-5x>8\\51x>8\\\mathrm{Divide\:both\:sides\:by\:}51\\\frac{51x}{51}>\frac{8}{51}\\\\x>\frac{8}{51}

I hope it helps :)

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