Question

3x + 4 y =10 and 2x - 2 y =2​

Answer 1

Answer:

$if \: y = 1 \\ so \: x = \\ 3x + 4y = 10 \\ 3x + 4 \times 1 = 10 \\ 3x + 4 = 10 \\ 3x = 10 - 4 \\ 3x = 6 \\ x = \frac{6}{3} \\ x = 2$

Answer 2

$\huge{\underline{\mathcal{Answer}}}$

$\large{☞}$x = 2

$\large{☞}$y = 1

$\huge{\underline{\mathcal{Given}}}$

$\large{↦}$3x+4y=10$\:\:\:\:....$(1)

$\large{↦}$2x-2y=2$\:\:\:\:....$(2)

$\huge{\underline{\mathcal{Steps}}}$

$\large{↠}$Multiplying equation (2) by 2:

$\large{☞}$4x-4y=4$\:\:\:\:....$(3)

$\large{↠}$Adding equation (3) and (1),

$\large{⇒}$3x+4x+4y-4y=10+4

$\large{⇒}$7x=14

$\large{⇒}$x = 2

$\large{↠}$Substituting value of x in equation (2),

$\large{⇒}$2*2-2y=2

$\large{⇒}$4-2y = 2

$\large{⇒}$-2y = -2

$\large{⇒}$y = 1

$\\\\\fbox{\fbox{\fbox{\fbox{\huge{\underline{\underline{\sf{\green{Hope\:it\:helps}}}}}}}}}$