What is 3*(-y)=1,2*+y=9 ?

The solution to 3*(-y)=1,2*+y=9 is No Solution

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3(-y)=1,2+y=9

3 \cdot (- y) = 1, 2 \cdot + y = 9

No Solution

Solution steps

[3 (- y) = 1 2 + y = 9]

Isolate

y

for

3 \cdot (- y) = 1 : y = - \frac{1}{3}

Substitute

y = - \frac{1}{3}

[2 - \frac{1}{3} = 9]

Simplify

[\frac{5}{3} = 9]

\frac{5}{3} = 9

is false, therefore the system of equations has no solution

No Solution

2 x - 3 y = 10, 0.4 - y = 10

3 x - 4 y = 41, 11 x + 6 y = 47

x + 3 y = 13, 3 x + y = 7

3 x + 2 y + z = 14, 5 x - 4 y - z = 4

7 a + 5 b = 30, 2 a - 3 b = 18