

transforming formulas
Presentation
•
Mathematics
•
7th Grade
•
Hard
Standards-aligned
Dusty Reno
Used 17+ times
FREE Resource
9 Slides • 7 Questions
1
transforming formulas

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Transforming formulas
we are solving the formula for a different variable then it is solved for.
3
when solving y=15x + 2 we follow the steps for solving a two step equation
we isolate the variable by removing the constant (+2) by subtracting 2
y-2 = 15x + 2 - 2
which leaves us with y - 2= 15x
next step we isolate by dividing both sides by the coefficient (15)
15(y−2)=1515x
15(y−2)=x
4
On equations that don't have a constant but have another term not attached to the variable you want to get ride of that term first.
B=5T+2h
let solve for T
5
Multiple Choice
What is my first step in Isolating the variable in the function B=5T+2h when solving for T?
divide by 5
divide by 2
add b to both sides
minus 2h to both sided
6
First step - 2h
B−2h=5T+2h−2h
This leaves us with B−2h=5T
7
Multiple Choice
what is our second step in solving for T?
divide by 2
divide by 5
add b to both sides
minus 2h to both sides
8
you divide both sides by 5
5(B−2h)=55T
5(B−2h)=T
9
Fill in the Blanks
Type answer...
10
lets solve the equation
a=2(4m+d) for dbecause of the parenthesis you have to get rid of the division of 2 by multiplying both sides by 2
2a=2(4m+d)2
2a=4m+d
now that we got rid of the parenthesis we can now isolate d
11
Multiple Choice
how do we isolate d in the equation 2a=4m+d
divide by 2
minus 4m to both sides
minus 2a to both sides
divide both sides by 4
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minus 4m from both sides
2a−4m=4m−4m+d
2a−4m=d
13
Fill in the Blanks
Type answer...
14
Multiple Select
now lets try one on your own. rewrite the equation
h=21vt for v
2ht=v
2th=v
t2h=v
th+21=v
15
t2h=v
In this formula you are dividing and multiplying and it doesn't matter which one you do first.
divide both sides by t or multiply both sides by 2
th=t(21vt) or 2h=2(21vt)
then do the step you didn't do from above next
2(th)=2(21v) or t2t=tvt
16
Fill in the Blanks
Type answer...
transforming formulas

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