Which of the following equations is written in standard form? a. -2x=13 b. 3x+5y=-15 c.

B

the equation of a line in standard form is

Ax + By = C

where A is a positive integer and B, C are integers

3x + 5y = - 15 is in standard form → B

use substitution to solve each system of equations. y = x + 5 3x + y = 25 62/87,21 y = x + 5 3x + y = 25 substitute x + 5 for y in the second equation. substitute the solution for x into either equation to find y. the solution is (5, 10)

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step-by-step explanation:

answer: a

step-by-step explanation:

if xy ~ yz therefore xy would be the same length as yz