What is 4x-3y=21,9x-2y=-84 ?

The solution to 4x-3y=21,9x-2y=-84 is x=-294/19 ,y=-525/19

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4x-3y=21,9x-2y=-84

4 x - 3 y = 21, 9 x - 2 y = - 84

x = - \frac{294}{19}, y = - \frac{525}{19}

Solution steps

[4 x - 3 y = 21 9 x - 2 y = - 84]

Isolate

x

for

4 x - 3 y = 21 : x = \frac{21 + 3 y}{4}

Substitute

x = \frac{21 + 3 y}{4}

[9 \cdot \frac{21 + 3 y}{4} - 2 y = - 84]

Simplify

[\frac{189 + 19 y}{4} = - 84]

Isolate

y

for

\frac{189 + 19 y}{4} = - 84 : y = - \frac{525}{19}

For

x = \frac{21 + 3 y}{4}

Substitute

y = - \frac{525}{19}

x = \frac{21 + 3 ( - \frac{525}{19} )}{4}

\frac{21 + 3 ( - \frac{525}{19} )}{4} = - \frac{294}{19}

x = - \frac{294}{19}

The solutions to the system of equations are:

x = - \frac{294}{19}, y = - \frac{525}{19}

u + v - 2 = 0, v - 6 = 0

a \cdot x + 3 y = 6, 2 x + y = - 3

3 x - 7 y = - 13, - 4 x + y = - 16

4 x + 3 y = 1, 8 x - 3 y = 7

- 2 i w (z) = - 5 i, z = 4

What is 4x-3y=21,9x-2y=-84 ?
The solution to 4x-3y=21,9x-2y=-84 is x=-294/19 ,y=-525/19