Question

Resolver por igualación 2x+3y=2 6x+12y=1

Answer 1

Answer:

$x = 3.5$

$y\approx1.666666667$

Step-by-step explanation:

To solve simultaneous equations, at least one of our variables must have the same coefficient. We can easily multiply the first equation by 4 to get 12y on both sides, so let's do that:

$8x + 12y = 8$

No let's subtract the second equation from the first equation to get the third equation:

$2x = 7$

Solve:

$x = 3.5$

Now, we can substitute this value into one of the original equations - let's use the second one:

$21 + 12y = 1$

Solve:

$12y = - 20$

$y = - \frac{ - 20}{12} = \frac{ - 10}{6} = - \frac{5}{3} \approx - 1.66666666667$