bicaplinger7766
16.03.2020 •
Mathematics
What is the first step in solving 9+7(x-1)=4x+14?
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Ответ:
Use distributive property to get rid of the parentheses.
Step-by-step explanation:
9+7(x-1)=4x+14
Use the order the operations (PEMDAS)
Parentheses
Exponents
Multiply
Divide
Add
Subtract
First you need to get rid of the parentheses by using distributive property.
9+7x-7=4x+14
Ответ:
C. The triangles are congruent because △R′S′T′ is a rotation of △RST , and a rotation is a rigid motion.