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11111nata11111 [884]
3 years ago
7

Determine if the ordered pair (6,-6) is a solution of the system of equations.

Mathematics
2 answers:
Step2247 [10]3 years ago
7 0
 4x + 3y =   6  ⇒ -24x - 18y = -36
-6x - 2y = -24 ⇒ <u>-24x -   8y = -96</u>
                                     <u>-10y</u> = <u>60</u>
                                      -10    -10
                                           y = -6
                              4x + 3(-6) = 6
                                  4x - 18 = 6
                                  <u>    + 18 + 18</u>
                                         <u>4x</u> = <u>24</u>
                                          4      4
                                            x = 6

The orderd pair (6, -6) is a solution of the system of equations.
stich3 [128]3 years ago
7 0
Change x with 6 and y with -6

4x+3y=6
4*6+3*(-3)=24-18=<u>6</u>

-6x-2y=-24
-6*6-2*(-6)=-36+12=<u>-24
</u>
answer is yes
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