school
Acemy

Systems of Two Linear Equations in Two Variables

SAT Math· difficulty 5/5

Solve: 1x+1y=56\frac{1}{x} + \frac{1}{y} = \frac{5}{6} and 1x−1y=16\frac{1}{x} - \frac{1}{y} = \frac{1}{6}. What is xx?

  • A

    1

  • B

    2

    check_circle
  • C

    3

  • D

    4

Explanation

Add: 2x=1\frac{2}{x} = 1 → x=2x = 2.

Want 10 more like this — adaptive to your weak spots?

Practice 10 like thisarrow_forwardPredict my AP score

Related questions

auto_awesomeAll Toolsquestion_answerHomework Q&Amenu_bookAP & SAT PreptimelineLearn Mode