Join IDNLearn.com today and start getting the answers you've been searching for. Our platform is designed to provide reliable and thorough answers to all your questions, no matter the topic.
Sagot :
To solve the system of equations:
[tex]\[ \begin{array}{l} 3x - 2y = 4 \\ x + y = 2 \end{array} \][/tex]
we will use the substitution or elimination method. Here, I'll demonstrate using the substitution method.
1. Solve the second equation for [tex]\( x \)[/tex]:
[tex]\[ x + y = 2 \implies x = 2 - y \][/tex]
2. Substitute [tex]\( x = 2 - y \)[/tex] into the first equation:
[tex]\[ 3(2 - y) - 2y = 4 \][/tex]
3. Simplify and solve for [tex]\( y \)[/tex]:
[tex]\[ 6 - 3y - 2y = 4 \\ 6 - 5y = 4 \\ -5y = 4 - 6 \\ -5y = -2 \\ y = \frac{2}{5} \][/tex]
4. Substitute [tex]\( y = \frac{2}{5} \)[/tex] back into the equation [tex]\( x = 2 - y \)[/tex]:
[tex]\[ x = 2 - \frac{2}{5} \\ x = \frac{10}{5} - \frac{2}{5} \\ x = \frac{8}{5} \][/tex]
Thus, the values are:
[tex]\[ x = \frac{8}{5}, \quad y = \frac{2}{5} \][/tex]
So, the correct choice is [tex]\( \boxed{D} \)[/tex].
[tex]\[ \begin{array}{l} 3x - 2y = 4 \\ x + y = 2 \end{array} \][/tex]
we will use the substitution or elimination method. Here, I'll demonstrate using the substitution method.
1. Solve the second equation for [tex]\( x \)[/tex]:
[tex]\[ x + y = 2 \implies x = 2 - y \][/tex]
2. Substitute [tex]\( x = 2 - y \)[/tex] into the first equation:
[tex]\[ 3(2 - y) - 2y = 4 \][/tex]
3. Simplify and solve for [tex]\( y \)[/tex]:
[tex]\[ 6 - 3y - 2y = 4 \\ 6 - 5y = 4 \\ -5y = 4 - 6 \\ -5y = -2 \\ y = \frac{2}{5} \][/tex]
4. Substitute [tex]\( y = \frac{2}{5} \)[/tex] back into the equation [tex]\( x = 2 - y \)[/tex]:
[tex]\[ x = 2 - \frac{2}{5} \\ x = \frac{10}{5} - \frac{2}{5} \\ x = \frac{8}{5} \][/tex]
Thus, the values are:
[tex]\[ x = \frac{8}{5}, \quad y = \frac{2}{5} \][/tex]
So, the correct choice is [tex]\( \boxed{D} \)[/tex].
We greatly appreciate every question and answer you provide. Keep engaging and finding the best solutions. This community is the perfect place to learn and grow together. IDNLearn.com is committed to providing the best answers. Thank you for visiting, and see you next time for more solutions.