Question

Solve the following equation using cross multiplication method :7x-9y-19=0 and 4x+5y-21=0

Answer 1

here is your answer
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Answer 2

Answer:

The value of x is 4 and the value of x is 1.

Step-by-step explanation:

The given equations are

$7x-9x-19=0$

$4x+5y-21=0$

Using cross section method we get,

$\frac{x}{189+95}=\frac{y}{-76+147}=\frac{1}{35+36}$

$\frac{x}{284}=\frac{y}{71}=\frac{1}{71}$

$\frac{x}{284}=\frac{1}{71}$

$x=\frac{284}{71}$

$x=4$

$\frac{y}{71}=\frac{1}{71}$

$y=1$

Therefore the value of x is 4 and the value of x is 1.