8x-2y+5z=-5
5x+2y-3z=7

1 Add

2

y

2y to both sides.

8

x

+

5

z

=

−

5

+

2

y

8x+5z=−5+2y

2 Regroup terms.

8

x

+

5

z

=

2

y

−

5

8x+5z=2y−5

3 Subtract

5

z

5z from both sides.

8

x

=

2

y

−

5

−

5

z

8x=2y−5−5z

4 Divide both sides by

8

8.

x

=

2

y

−

5

−

5

z

8

1 Subtract

2

y

2y from both sides.

5

x

−

3

z

=

7

−

2

y

5x−3z=7−2y

2 Add

3

z

3z to both sides.

5

x

=

7

−

2

y

+

3

z

5x=7−2y+3z

3 Divide both sides by

5

5.

x

=

7

−

2

y

+

3

z

5

x=

5

7−2y+3z

​

I hope this help you

Using a table of values, the outputs of f(x) for whole numbers are 0, 1, 4, 9, 16, 25, 36, and so on. For the same input values, g(x) has outputs of 1, 2, 4, 8, 16, 32, and 64. Continuing to double the output each time results in larger outputs than those of f(x). The exponential function, g(x), has a constant multiplicative rate of change and will increase at a faster rate than the quadratic function.

(ed. just click all of them)