Combine Terms
7y - 5y
2y
Name the constant in this expression: 3 - 4p
3
z - 74 = -19
z = 55
12y + 2 = 146
y = 12
p + 4p = -15
p = -3
-6z - 4z
-10z
Name the coefficient in this equation? -7y - 9 = 90
-7
-8 + y = 17
y = 25
2x + 6 = -8
x = -7
8 - m - 3m = 16
m = -2
3x - 5 - 9x + 6
-6x + 1?
Tell the difference between and expression and equations
An equation has an equal sign in it
9n = 126
n = 14
x/12 - 1 = 8
x = 108
3(x - 2) = 15
x = 7
2(1 - 4x) - 2
-8x?
How do you factorise an expression?
Look for what is common between terms
E.G. 6x + 3 = 3(2x+1) because you can divide both terms by 3
102k = -408
k = -4
x/-9 + 4 = 2
x = 18
24 = -2(b - 3) + 8
b = -5?
-6(n - 7) + 8(5 + 6n)
42n + 82?
Name the four rules of solving equations
Remove ( ), combine terms, undo +/-, and undo multiply/divide?
b/-96 = -3
b = 288
17 = 3(g - 3) - g
g = 13?