Combine Like Terms
Why can't you combine 3x + 6?
They are not like terms, the 6 does not have a variable, can't make giraffelants
When you distribute (do rainbows), do you add or multiply?
multiply
Evaluate the expression when m = -5.7
4m
4(-5.7) = -22.8
When given the expression:
3(4x + 7) + 2
Should I distribute or Combine like terms first?
Distribute (PEMDAS)
Simplify 4x + 2x
6x
2(3x + 4)
6x + 8
Evaluate the expression when m = -3.9 and n = 2.9
5m - 7n
5(-3.9) - 7(2.9)
-19.5 - 20.3 = - 39.8
Solve: 3(4x + 7) + 2
12x + 21 + 2
12x + 23
Simplify the expression
-11x^2 + 5x - 6x^2 + 2
-17x^2 + 5x + 2
-7(2f + 10)
-14f + -70 or -14f - 70
Evaluate the expression when x = -2.9 and y = 5.8
-6x + 3y
-6(-2.9) + 3(5.8)
17.4 + 17.4 = 34.8
-5(2x + 10) + 20
-10x + -50 + 20
-10x + -30
-5 + 10e + 11 - e
6 + 9e or 9e + 6
- (8v - 3)
-8v + 3
Evaluate the expression when m = -3.7 and n = -1.8
7n – 6m
7(-1.8) - 6(-3.7)
= 9.6
- (x + 7) - 1
-x + -7 - 1 (don't forget super powers)
-x + -8
Simplify: 5b + 6.3bc + 1.8c - 4b - 0.7c - 9
b + 6.3bc + 1.1c - 9 or b + 6.3bc + 1.1c + -9
-9(-3m - 5)
27m + 45
Evaluate the expression when a = -6.7 and b = -4.8
3b - 4a
3(-4.8) - 4(-6.7)
=41.2
10 - (12m - 1) + 5 - 3m
10 + -12m + 1 + 5 + -3m (don't forget about super powers)
-15m + 16