Question

*3x + 7 = 19 then -2x = ?* 1️⃣ 4 2️⃣ -4 3️⃣ 8 4️⃣ -8​

Answer 1

Answer:

4️⃣ -8

Step-by-step explanation:

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Answer 2

Answer:

3x + 7 = 19

3x = 19 - 7

3x = 12

x = 12/3

x = 4

now we know that value of x is 4

-2x

-2(4)

-8

your answer is -8