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Helppp ! , Use substitution to solve each system of equation and must show checks !!!

Helppp ! , Use substitution to solve each system of equation and must show checks-example-1
User Zihan
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1 Answer

3 votes
5x - 2x = 9

Collect terms

3x = 9

Divide by 3

X= 3


____________________


Plug 3 for x


Y= 2•3

Y= 6

——————————————

Check:


{ 6 = 2•3
{ 5•3-6 = 9


{ 6 = 6
{ 9 = 9


Solution:


( X, Y ) = ( 3, 6 )
User Thang Pham
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7.3k points