0
1) 2x + 1 = 3y
2) 4 = 3y - 10 this can be re-written as 3y = 4 + 10
Therefore 2x + 1 = 4 + 10
2x = 13
x = 6.5
Sustitute x = 6.5 in equation 1) above
2x + 1 = 3y
2 (6.5) + 1 = 3y
therefore 3y = 13 +1
3y = 14
y = 14/3
Now substitute y = 14/3 in equation 2) above and watch what happens!
4 = 3(14/3) -10
4 = 4
Therefore the answer is correct!
What else can I help you with?
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