Question

Solve the equations 3x+4y-10=0 and 2x-2y-2=0

Answer 1

Step-by-step explanation:

3x is equal to -10-4y

x is equal to -10-4y upon 3

2x is equal to -2 +2y

x is equal to-2+2y upon 2

hope it helps you

Answer 2

Answer:

$3x + 4y = 10..........(i)$

$2x - 2y = 2..........(ii)$

Multiplying (ii) by 3,

$= > 6x - 6y = 6 \\ = > 2(3x - 3y) = 2(3) \\ = > 3x - 3y = 3..............(iii)$

Subtracting (iii) by (i),

$= >( 3x + 4y) - (3x - 3y) = (10) - (3) \\ = > (3x + 4y - 3x + 3y) = 7 \\ = > 7y = 7 \\ = > y = \frac{7}{7} \\ = > y = 1$

Substituting value of y in (i),

$= > 3x + 4(1) = 10 \\ = > 3x + 4 = 10 \\ = > 3x = 10 - 4 \\ = > 3x = 6 \\ = > x = \frac{6}{3} \\ = > x = 2$

Hope this answer helps you ^_^ !