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Mathematics 11 Online
OpenStudy (anonymous):

I need help please!

OpenStudy (anonymous):

Jose wrote the following steps to prove the equation: Given: 4(x + 1) = 10x – 8 Prove: x = 2 Step Mathematical Statement Justification 0 4(x + 1) = 10x – 8 Given 1 4x + 4 = 10x – 8 Distributive Property 2 4 = 6x – 8 Subtraction Property of Equality 3 12 = 6x Addition Property of Equality 4 6x = 12 Symmetric Property of Equality 5 x = 2 Associative Property of Multiplication Which step of justification is incorrect, and what should the justification for that step be to solve the equation? Answer Step 5; Division Property of Equality Step 1; Commutative Property of Addition Step 2; A

OpenStudy (anonymous):

these are the last two choices: Step 2; Addition Property of Equality Step 3; Subtraction Property of Equality

OpenStudy (anonymous):

Step 3; Subtraction Property of Equality

OpenStudy (hoblos):

step 3 is correct "Addition Property of Equality" because we are adding 8 to both sides but step5 must be "Division Property of Equality"

OpenStudy (anonymous):

thank u both

OpenStudy (anonymous):

you're welcome.

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