SATMathematics Practice Test 1

Subtracting 1,052 from both sides of the equation a=1,052+1.08t gives a−1,052=1.08t.
Then dividing both sides of a−1,052=1.08t by 1.08 gives t=

a−1,052

1.08

Choices B, C, and D are incorrect and could arise from errors in rewriting a=1,052+1.08t.
For example, choice B could result if 1,052 is added to the left side of a=1,052+1.08t and subtracted from the right side, and then both sides are divided by 1.08.