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VikaD [51]
3 years ago
9

Alejandro solved the equation 5(7x^2-2)-8=3. He wrote 5(7x^2-2)=11 as his first step. Which property justifies his first step?

Mathematics
2 answers:
zheka24 [161]3 years ago
8 0

His first step justifies The Addition Property of Equality. Hope this helps.

Scorpion4ik [409]3 years ago
3 0
The addition property of equality. It says that if you add the same number to each side of the equation, the two sides of the equation will be equal. In this case, the number 8 was added to each side.

Hope this helps :)
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mote1985 [20]
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If m ACB =(11x-32),find the value of x
Digiron [165]

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3 years ago
BRAINLIEST. NEED HELP NOW!!!<br> What is the value of x?
Arturiano [62]

Answer:

x=10

Step-by-step explanation:

these are similar triangles

8             12

------   = -----------

x+4          2x+1


using cross products

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distribute

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subtract 12x from each side

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subtract 8 from each side

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divide by 4

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3 0
3 years ago
Serrians triangle has a height of 3x-4 and the base length is 8x+4 what is the area of the triangle
kirill115 [55]
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A=b×h÷2
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A=(-4/6)÷2
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A=-4/6×1/2
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A=-1/3
3 0
3 years ago
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