Question

find x if (2/5)-3*(5/2)15=(2/5)2+5x

Answer 1

Step-by-step explanation:

(2/5)^-3 × (5/2)^15 =(2/5)^2+5x

(2/5)^-3 × (2/5)^-15 = (2/5)^2+5x

(2/5)^-3+(-15) = (2/5)^2+5x

(2/5)^-18 = (2/5)^2+5x

(2/5)^2+5x = (2/5)^-18

When bases are equal, powers are also equal

2+5x = -18

5x = -18-2

5x = -20

x = -20/5

x = -4

Answer 2

Answer:

Step-by-step explanation:

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