3 years ago

What is the value of x in the equation 8 + 4 = 2(x - 1)?

Mathematics

2 answers:

jasenka [17]3 years ago

7 0

Answer:

Step-by-step explanation:

8 + 4 = 2(x - 1)

2(x - 1) = 12

x - 1 = 6

x = 7.

Stells [14]3 years ago

6 0

Answer:x=7

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

8+4==2(x-1)

8+4=(2)(x)+(2)(-1)(Distribute)

8+4=2x+-2

(8+4)=2x-2(combine like terms)

12=2x-2

Step 2: flip the equation

2x-2=12

Step 3: Add 2 to both sides.

2x-2+2=12+2

2x=14

Step 4: Divide both sides by 2.

2x/2=14/2

X=7

Hope it helps

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