halexdominguez2 halexdominguez2

14-02-2018
Mathematics

contestada

Solve.
{y=x−7
{5x+2y=7

Use the substitution method.

A. (−1, −8)

B. (0, −7)

C. (7, 0)

D. (3, −4)

Respuesta :

MySt3r10us MySt3r10us

15-02-2018

The answer would be D. (3, -4).

Work:
3 = x
-4 = y
3 • 5 = 15
-4 • 2 = -8
15 + -8 = 7

To check: y = x - 7
-4 = 3 - 7
3 - 7 = -4

Answer Link

sunshinet1983 sunshinet1983

08-05-2022

Answer:

(3, –4)

Step-by-step explanation:

6.07 Quiz: Substitution Method Wrap-Up

Answer Link

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