# TSI Math: Solving an Equation with Two Unknown Variables

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Solve for p.

T = p – 0.2p

Elementary Algebra and Functions | Algebraic Expressions and Equations |

Mathematics and Statistics Assessment | Algebraic Expressions and Equations |

Product Type | TSI |

TSI | Mathematics and Statistics Assessment TSI Math TSI Mathematics |

TSI Math | Elementary Algebra and Functions |

TSI Mathematics | Elementary Algebra and Functions |

Test Prep | TSI |

### Transcript

looks a bit scary here because there's two p's and

one has a decimal coefficient and seeing the terms as

like terms help simplify the right side And while placing

a one in front of the p makes the values

that should be subtracted way clear So i got t

equals one p minus point to p or t equals

point eight p all right well that makes it a

lot easier We'll divide both sides by point eight We

got t over point eight is p or p equals

t over point eight All right Well it's not even

answer choice We're looking here You see it anywhere Nope

Ain't there It's a problem Well none of the answer

choices air decimal So we've got to make this thing

a fraction so let's Think about it Making our equation

conform A cement of changing point Eight two eight over

ten right You'd agree Those were the same thing So

let's Think about this instead of point Eight times P

let's Make it eight tense times being reduced that to

four fifths times P and all right but we've got

a solve for p so we gotta multiply both sides

by i five force And if we do that well

guess what we got P equals five force t or

five t over four which is answer c and we're 00:01:30.864 --> [endTime] done