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SOLVING 1 AND 2-STEP EQUATIONS Flashcards | StudBud
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SOLVING 1 AND 2-STEP EQUATIONS
SOLVING 1 AND 2-STEP EQUATIONS
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Answers
1
FIRST step to solve: 2a - 6 = -4
ADD 6 to both sides
Multiply both sides by 2
Add 4 to both sides
Divide both sides by 2
2
First step to solve -7n + 11 =24
Subtract 11 from both sides
Add 7 to both sides
Divide both sides by -7
Multiply both sides by -7
3
When solving equations, the goal is to
Subtract
Isolate the variable
Multiply
Add
4
Our mantra for solving equations is
COVID-19 NEEDS TO BE GONE
Undo and Isolate
Add/subtract last
Parenthesis first
5
SECOND step to solve 5h + 2 = 17
Add 2 to both sides
Multiply both sides by 5
Divide both sides by 5
Subtract 2 from both sides
6
A __________ is a symbol, usually a letter, used to represent an unknown number.
variable
constant
solution
coefficient
7
The value of the variable that makes the equation true is called a/an ____________.
variable
solution
operation
inverse
8
To solve -3b=-21
Divide both sides by -3
Add 3 to both sides
Multiply both sides by 7
Subtract 3 from both sides
9
The inverse operation of subtraction is ______________.
multiplication
addition
subtraction
division
10
To solve 2 + w= -8
Subtract 2 from both sides
Add 2 to both sides
Add -6 to both sides
Add 8 to both sides
11
If the coefficient is a fraction we
Add the opposite TO BOTH SIDES
Multiply BOTH SIDES by the fraction
Divide BOTH SIDES by the fraction
Multiply both sides by the RECIPROCAL
12
SECOND OPERATON TO SOLVE: -3m + 9 = 12
ADDITION
SUBTRACTION
DIVISION
MULTIPLICATION
13
The inverse operation of addition is ______________.
addition
division
multiplication
subtraction
14
Operations that "undo" each other are called __________.
solutions
coefficients
inverses
variables
15
A mathematical sentence that contains an equal sign is an _____________.
equation
operation
expression
solution
16
The inverse operation of multiplication is ______________.
division
subtraction
multiplication
addition
17
SECOND step to solve 7t - 8 = -49
Add 8 to both sides
Divide both sides by 7
Add 7 to both sides
Subtract 7 from both sides
18
The inverse operation of division is ______________.
subtraction
division
addition
multiplication