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JulijaS [17]
3 years ago
8

An equation and the steps to solve it are shown below:

Mathematics
2 answers:
Umnica [9.8K]3 years ago
6 0

Answer:

Step 3, because a number has been added only to one side of the equation

Step-by-step explanation:

Here, the given equation is,

7x-\frac{1}{2}(8x+4)=6

The steps for solving this equation would be,

Step 1 : Apply distributive property on left side of the equation,

7x-4x-2=6

Step 2 : Combine like terms in left side,

3x-2=6

Step 3 : Add 2 on both sides ( additive property of equality ),

3x-2+2 = 6+2

Step 4 : Combine like terms,

3x=8

Step 5 : Isolate x,

x=\frac{8}{3}

Thus, by the above explanation it is clear that he did it mistake on step 3, ( he did not add 2 on right side of the equation ),

Hence, Third option is correct.

swat323 years ago
4 0
Step 3....because a number has been added only to one side of the equation
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7 0
3 years ago
If log10(x^{2}y^{3})=7 and log10 (x/y)=1 , then x=__ and y= __
yuradex [85]

Answer:

x=100

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Step-by-step explanation:

we are given

log_1_0(\frac{x}{y})=1

Firstly, we will get rid of log

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10^{log_1_0(\frac{x}{y})}=10^{1}

now, we can simplify it

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now, we can solve for x

x=10y

we are given

log_1_0(x^2y^3)=7

Firstly, we will get rid of log

so, we will take exponent of 10 on both sides

10^{log_1_0(x^2y^3)}=10^7

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now, we can solve for y

100y^5=10000000

\frac{100y^5}{100}=\frac{10000000}{100}

y^5=100000

now, we can take radical 5

y=\sqrt[5]{100000}

y=10

now, we can find x

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4 0
4 years ago
Y = 10 when x = 2 find y when x = 3
Tresset [83]
You are going to want to isolate the variable shave u done tht yet

3 0
3 years ago
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Lynna [10]

Answer:

Step-by-step explanation:

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a² = 5² - 3² = 16

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