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Stage 1 - Stage 3

Consider this system of equations.

Equation 1 | $\frac{4x}{5}+\frac{3y}{5}=4$4x5+3y5=4 |

Equation 2 |
$8x-3y=5$8 |

Which operation will change the fractional coefficients to integer coefficients in this system of equations?

Multiply **Equation 2** by $5$5.

A

Multiply **Equation 1 **by $5$5.

B

Divide **Equation 2** by $3$3.

C

Divide E**quation 1** by $3$3.

D

Easy

< 1min

Consider this system of equations.

Equation 1 | $\frac{2x}{5}+\frac{3y}{5}=-\frac{7}{5}$2x5+3y5=−75 |

Equation 2 |
$-\frac{1}{4}\left(-5x+\frac{7y}{9}\right)=2$−14(−5 |

Easy

< 1min

Consider the following equations.

Equation 1 | $4x+7y=-9$4x+7y=−9 |

Equation 2 | $12x+21y=-18$12x+21y=−18 |

Easy

6min

We want to solve the following system of equations using the substitution method.

Equation 1 | $y=5x+34$y=5x+34 |

Equation 2 | $y=3x+18$y=3x+18 |

Easy

3min

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