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Popular >

7x+4y=26,3x-4y=4

Solution

7 x + 4 y = 26, 3 x - 4 y = 4

Solution

x = 3, y = \frac{5}{4}

Solution steps

[7 x + 4 y = 26 3 x - 4 y = 4]

Isolate

x

for

7 x + 4 y = 26 : x = \frac{26 - 4 y}{7}

Substitute

x = \frac{26 - 4 y}{7}

[3 \cdot \frac{26 - 4 y}{7} - 4 y = 4]

Simplify

[\frac{78 - 40 y}{7} = 4]

Isolate

y

for

\frac{78 - 40 y}{7} = 4 : y = \frac{5}{4}

For

x = \frac{26 - 4 y}{7}

Substitute

y = \frac{5}{4}

x = \frac{26 - 4 \cdot \frac{5}{4}}{7}

\frac{26 - 4 \cdot \frac{5}{4}}{7} = 3

x = 3

The solutions to the system of equations are:

x = 3, y = \frac{5}{4}

Popular Examples

3x+2y=1,2-2x+y=-8

3 x + 2 y = 1, 2 - 2 x + y = - 8

5x-4y=-1,0y=2x-5

5 x - 4 y = - 1, 0 y = 2 x - 5

y=3x-5,2x-y+1=0

y = 3 x - 5, 2 x - y + 1 = 0

2x-3y+2=0,6x+9y+5=0

2 x - 3 y + 2 = 0, 6 x + 9 y + 5 = 0

7m+13n=27,13m+7n=33

7 m + 13 n = 27, 13 m + 7 n = 33

Frequently Asked Questions (FAQ)

What is 7x+4y=26,3x-4y=4 ?
The solution to 7x+4y=26,3x-4y=4 is x=3,y= 5/4