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grigory [225]
3 years ago
15

2y = x + 10 3y = 3x + 15

Mathematics
1 answer:
ExtremeBDS [4]3 years ago
6 0
<span>{2y = x + 10
{3y = 3x + 15  |:3

</span>{2y = x + 10
{y = x + 5

{2(x+5) = x + 10
{y = x + 5

{2x+10 = x + 10
{y = x + 5

{2x - x = 10 - 10
{y = x + 5

{x = 0
{y = x + 5

{x = 0
{y = 5
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