Question

#4 Solve the system below with substitution or elimination and write your answer as a coordinate pair (x,y). Show all work in Illuminate. x = 2y + 11 -7x – 2y = -13 #5 Solve the system below with substitution or elimination and write your answer as a coordinate pair (x,y). Show all work in Illuminate. I 1 -6x + 5y = 1 16x + 4y = –10 #6 The cost of 12 tomatoes and 7 peppers is $5.36. The cost of 8 tomatoes and 5 peppers is $3.68. Find the prices of the Rucation, Inc.

Answer 1

In this case, we'll have to carry out several steps to find the solution.

Step 01:

4.

Data

x = 2y + 11 eq. 1

-7x – 2y = -13 eq.2

Step 02:

Substitution method

eq.1 in eq.2

-7(2y + 11) – 2y = -13

-14y -77 -2y = -13

-16y = -13 + 77

y = 64 / -16 = -4

eq.1

x = 2(-4) + 11

x = -8 + 11

x = 3

The answer is:

( 3 , - 4)