Simplify expressions to solve equations

When solving equations, we should simplify the expressions that make up the left and right sides before applying any properties of equality. Often, that involves removing parentheses and/or combining like terms.
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Questions #: 5
Time: 5 minutes
Pass Score: 80.0%
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Solve the following equation

3(k + 1) -5k = 0

Write your answer as a variable = result

POINTS (1)

Correct Answer

Explanation

Solve the following equation

8a - 2(a - 7) = 68

a =

POINTS (1)

Correct Answer

Explanation

Solve the following equation

3x - 15 = 4x + 36

x =

POINTS (1)

Correct Answer

Explanation

Solve the following equation

3(4x - 80) + 6x = 2(x + 40)

x =

POINTS (1)

Correct Answer

Explanation

Sort the following steps to get the recommended strategy for solving equations

Please drag and drop the options to sort them
Isolate the variable term on one side
Simplify each side of the equation
Check the result
Isolate the variable
POINTS (1)

Correct Answer

Explanation

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sin cos tan
sin-1 cos-1 tan-1 π e
xy x3 x2 ex 10x
y√x 3√x √x ln log
( ) 1/x % n!
7 8 9 + MS
4 5 6 – M+
1 2 3 × M-
0 . EXP ÷ MR
± RND C = MC

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