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SAT® Subject Test in Math 1 & 2

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Moderate

Infinite Number of Solutions

SATSTM-MEYF5U

For the equation:

$$5(x-3)+a=5(x+1)$$

...to have an infinite number of solutions, what must the value of $a$ be?

A

$5$

B

$10$

C

$15$

D

$20$

E

$25$