if -12-4(-2x)= 4 then what is x?
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1. User Answers Anonym
Answer:
[tex]\boxed{\boxed{\sf x=2}}[/tex]
Step-by-step explanation:
[tex]\sf -12-4\left(-2x\right)=\:4[/tex]
First, let's remove parentheses:
[tex]\sf -12-4\times -2x=4[/tex]
Simplify, multiply, 4 * -2x = -8x:
[tex]\sf -12-(-8x)=4[/tex]
** Apply rule: - ( -a )= a
[tex]\sf 12+8x=4[/tex]
Now, let's regroup terms
[tex]\sf 8x-12=4[/tex]
Add 12 to both sides:
[tex]\sf -12+8x+12=4+12[/tex]
Simplify, 4 + 12= 16
[tex]\sf 8x=16[/tex]
Divide both sides by 8:
[tex]\sf \cfrac{8x}{8}=\cfrac{16}{8}[/tex]
[tex]\sf x=2[/tex]
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2. User Answers erimatthew09
Answer:
[tex]hey \: buddy \: \\ this \: is \: your \: answer[/tex]
Step-by-step explanation:
1)Eliminate redundant parentheses
[tex] - 12 - 4( - 2x) = 4 \\ - 12 - 4( - 2x) = 4[/tex]
2)Multiply the numbers
[tex] - 12 - 4( - 2)x = 4 \\ - 12 + 8x = 4[/tex]
3)Rearrange terms
[tex] - 12 + 8x =4 \\ 8x - 12 = 4[/tex]
4)Simplify the equation
[tex]8x = 12 + 4 \\ 8x = 16 \\ 8x \div 8 = 16 \div 8 \\ [/tex]
5) Divide
[tex]x = 2[/tex]
hope I helped