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How do you write the equation? What is the solution on question 2

How Do You Write The Equation What Is The Solution On Question 2 class=
How Do You Write The Equation What Is The Solution On Question 2 class=
How Do You Write The Equation What Is The Solution On Question 2 class=

Sagot :

Panoyinidn
1x + 2y = 4 ⇒ 3x + 6y = 12
3x + 2y = 0 ⇒ 3x + 2y =   0
                               4y = 12
                                4      4
                                 y = 3
                         x + 2y = 4
                       x + 2(3) = 4
                           x + 6 = 4
                               - 6 - 6
                                 x = -2
                           (x, y) = (-2, 2)

p = q + 2
3p + 2q = 9

    3(q + 2) + 2q = -9
3(q) + 3(2) + 2q = -9
      3q + 6 + 2q = -9
      3q + 2q + 6 = -9
              5q + 6 = -9
                   - 6    - 6
                    5q = -15
                     5       5
                       q = -3
p = q + 2
p = -3 + 2
p = -1
(p, q) = (-3, -1)
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