What's the next step?
3x + -1 = -5x + 4
Move the variables (which are like terms) to one side. Add 5x to both sides. 8x + -1 = 4
3x + 10x - 14 -x + x2
x2 + 12x - 14
-3 - 4x = 21 - 8x
x = 6
16 − 2x = −8 + 4(x − 3)
x = 6
The vocabulary word that means a letter that represents a number.
What is a variable?
3x + 5x + 2 = 6x - 1
Add 3x + 5x and to equal 8x.
8x + 2 = 6x - 1
-5 + 5(x + 4)
5x +15
2x + 12x - 8 = 11x + 1
x = 3
10(1+3b) = -20
b = -1
The math vocabulary word for opposite, as in using an _______________ operation.
What is inverse?
11x +7 = -70
Isolate the variable by moving the constants to the same side. 11x = -77
4b + b + b + a - 4a - 3 + 10
6b-3a+7
-9x + 8 = 48 + x
X = -4
5 − (8x + 5) = −4(1 + 3x)
x = -1
A vocabulary word that means that a number has a fixed value.
What is a constant?
3(x - 1) = 4x
Use the distributive property: 3x - 3 = 4x
2x - (9x - 4)
-7x + 4
-6x + 14x - 280 = -9x - 127
x = 9
3(x − 6) = −5x − (7 + 3x)
x = 1
What phrase means to put together variables and to put together constants in an expression or an equation?
What is "combine like terms"?
-1/16x=2
Multiply both sides by -16
11 - (3x - 6) + 2(4x +5) - x
4x + 27
-6/10 x - 7/10 x +5/10 x = -56
x=70
−6(3 − 6x) = −18 + 4x
x = 0
The number part of a term that contains a variable.
What is the coefficient?