ALGEBRA 1 WORKBOOK: Master the Skills of Algebra 1 by Patrick Donald

ALGEBRA 1 WORKBOOK: Master the Skills of Algebra 1 by Patrick Donald

Author:Patrick, Donald [Patrick, Donald]
Language: eng
Format: epub
Published: 2019-12-12T16:00:00+00:00


The point where the two lines meet is the solution which is -3 and -4

Using substitution method to solve linear equation

Substitution method of solving

Find x and y in this equation

Given x+y =9, y = 2x-3

Solution

Let first equation be one x+y =9, and the other be equation two y = 2x-3

The second equation is y = 2x-3 substitute this value of y in the first one.

x+y =9

It will be x+2x-3 =9

Collect like terms

2x + x = 9 + 3

3x = 12

Divide both side by 3

We have =

X = 4, you can use any of the equation to look for the value of y, Let us use equation one

X+y = 9, substitute the value of x in the equation to get that of y

4+y =9

Y = 9-4

Y=5



Download



Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.