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Mathematics, 18.11.2020 22:20 cedricevans41p4j3kx
2x+y=4
2ยท6+(โ8)=?4
12โ8=?4
4=4
What do you substitute for x and y in the first equation?
Substitute 6 for x and โ8 for y in the first equation.
Perform the multiplication first.
When the left side of the equation is simplified, a true statement results.
x+3y=โ20
6+3ยท(โ8)=?โ20
6โ24=?โ20
โ18โ โ20
What do you substitute for x and y in the second equation?
Substitute 6 for x and โ8 for y in the second equation.
Perform the multiplication first.
When the left side of the equation is simplified, a false statement results.
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Answers: 2
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You know the right answer?
2x+y=4
2ยท6+(โ8)=?4
12โ8=?4
4=4
What do you substitute for x and y in the first eq...
12โ8=?4
4=4
What do you substitute for x and y in the first eq...
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