Free SAT Practice Question

Question 1 of 1
ID: SAT-PTAM-3
Section: Math - Passport to Advanced Math
Topics: Exponents; Exponents with negative base
Difficulty level: Challenging

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If $x$ is an integer such that ${(-5)}^{6x}=5^{(10\ +\ x)},$ what is the value of $x$? (Without calculator)

A$-1$
B$1$
C$2$
D$3$
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