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M What is the value of y in the system of equations shown below? X-10=0 3x + 5y = 20 ح​

User Johnnyaug
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1 Answer

4 votes

Answer:

y= -2

Step-by-step explanation: x-10=0 move the - 10 to the other side it will be +10 s0 x=10

then use that value to solve the second equation

3*10 +5y=20

30 +5y=20

remember: anything that moves to the other side of the equation always invert its sign so +30 will be -30

5y= 20-30

5y= -10

y= -10/5

y= -2

User Harry Beasant
by
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