You need to solve a system of equations. You decide to use the elimination method. Which of these is not allowed? 3x-2y=7 equati

Question

3 years ago

7

on 1 3x+4y=17 equation 2

2 answers:

anygoal [31] · Answer 1 · 2022-07-10T11:10:46+03:00

7 0

Answer:

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svetlana [45] · Answer 2 · 2022-07-10T08:42:54+03:00

Answer:

x = 31/9 and y = 5/3

Step-by-step explanation:

It is given that,

3x - 2y = 7 -----(1)

3x + 4y = 17 ----(2)

<u>To find the solution by elimination method</u>

Step 1: Subtract eq(2) from eq(1)

3x - 2y = 7 -----(1)

<u> 3x + 4y = 17 </u>----(2)

0 - 6y = -10

6y = 10

y = 10/6 = 5/3

Step 2: Substitute the value of y in eq (1)

3x - 2y = 7 -----(1)

3x - 2*(5/3) = 7

3x = 7 + 10/3

3x = 31/3

x = 31/9

Therefore x = 31/9 and y = 5/3