What is -4x+y=29,5x-11y=32 ?

The solution to -4x+y=29,5x-11y=32 is x=-9,y=-7

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-4x+y=29,5x-11y=32

- 4 x + y = 29, 5 x - 11 y = 32

x = - 9, y = - 7

Solution steps

[- 4 x + y = 29 5 x - 11 y = 32]

Isolate

x

for

- 4 x + y = 29 : x = - \frac{29 - y}{4}

Substitute

x = - \frac{29 - y}{4}

[5 (- \frac{29 - y}{4}) - 11 y = 32]

Simplify

[\frac{- 145 - 39 y}{4} = 32]

Isolate

y

for

\frac{- 145 - 39 y}{4} = 32 : y = - 7

For

x = - \frac{29 - y}{4}

Substitute

y = - 7

x = - \frac{29 - ( - 7 )}{4}

- \frac{29 - ( - 7 )}{4} = - 9

x = - 9

The solutions to the system of equations are:

x = - 9, y = - 7

4 x + 3 y = 11, 5 x - 2 y = 8

3 x + 5 y = 12, 5 x + 2 y = 10

7 x - 15 y = 2, x + 2 y = 3

5 x - 3 y = 8, 3 x + y = 2

\frac{3.56}{2} = 31.56 m, h = 20