Substitution
By Sam
What is Substitution
Substitution is replacing a Number for a letter or a shape
How to solve Substitution
Click here to see a link on Substitution
How to do a substitution problem?
Substitute 3x + 6 for y into the second equation. To find y, substitute this value for x back into one of the original equations. Check the solution x = −2, y = 0 by substituting them into each of the original equations.
Symbols in Substitution
Click the Symbol you want to learn about
A
Here are some Example
9X
_________ = 99 X =
11
2 - 6Y (7 + 8) = 29 Y =
A4 (11 + 9) = 36 A = ?
X (9X) 4 + 3 =117 X = ?
Y6 - 5 + 3 = 44 Y = ?
A (2+3) = 25 A = ?
Hint: M = 5 and N = 3