Question

3x + 10/5x + 10 = 5/7


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Answer 1

$\frac{3x + 10}{5x + 10} = \frac{5}{7} \\ \\ = \geqslant 7(3x + 10) = 5(5x + 10) \\ \\ = \geqslant 21x + 70 = 25x + 50 \\ \\ = \geqslant 21x - 25x = 50 - 70 \\ \\ = \geqslant - 4x = - 20 \\ \\ = \geqslant x = \frac{ - 20}{ - 4} \\ \\ = \geqslant 5 \: answer \:$

Answer 2

Answer:

Step-by-step explanation:

3x+10/5x+10=5/7

(3x×5x+10+10×5x)/5x=5/7

15x^2+10+50x/5x=5/7

(15x^2+10+50x)7=25x

Hope it helps you