SOLUTION: Can you please explain substitution to me step by step?
Algebra.Com
Question 265223: Can you please explain substitution to me step by step?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Can you please explain substitution to me step by step?
------------------------
Equations:
x + y = 3
2x + 3y = 5
-----------------
Solve the 1st for "x":
x = 3-y
------
Substitute for "x" in the 2nd equation:
2(3-y) + 3y = 5
6 -2y + 3y = 5
y = -1
--------
Since x = 3-y
x = 3--1 = 4
---------------
Solution: (4,-1)
AMP Parsing Error of [graph(400,300,-10,10,-10,10,3-x,(-2/3)x+(5/3)]: Invalid function: opening bracket expected at /home/ichudov/project_locations/algebra.com/templates/Algebra/Expression.pm line 88.
.
----------------------
Use Google to search for "algebra substitution examples"
=====================================
Cheers,
Stan H.
RELATED QUESTIONS
Hi, I need help. I dont understand how to do two-step equations. Can you please explain... (answered by rfer)
can you explain me how to do this exercise step by... (answered by funmath)
can you explain me how to do this exercise step by... (answered by rapaljer)
Solve the equation analytically. Check it analytically by direct substitution, and then... (answered by jim_thompson5910)
i need help with 3 + log(2x+5)=2.... can you show me step by step and explain it to me... (answered by lwsshak3)
Convert the following decimal numbers to into binary format
a. 15
b. 210
c. 119
(answered by Boreal,MathLover1,greenestamps,Alan3354,math_tutor2020)
can you tell me how to do x+3/4=7/8 step by step... (answered by JBarnum)
can you please show me step by step how to show... (answered by jim_thompson5910)
Please can you explain to me how to do this equation step by step. a=-1 and b=5... (answered by Alan3354)