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2 years ago

Solve 4(x-3 )+x =2x+9 and justify your solution

Mathematics

2 answers:

ella [17]2 years ago

7 0

Answer:

X=7

Step-by-step explanation:

Multiply your 4 out on the left side to get

4x-12+x=2x+9

combine like terms on left side

5x-12=2x+9

get the x's by them selves

3x=21

divide both sides by 3

x=7

hope this helps

klio [65]2 years ago

6 0

X=7
after you remove parentheses you do those steps

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Answer:

The raw score for his exam grade is 99.69.

Step-by-step explanation:

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The formula use to find the z-score is

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3 years ago

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Solve the simultaneous equation<br> X+3y=13<br> X-y=5

Andru [333]

Answer:

x = 7

y = 2

Step-by-step explanation:

In the above question, we are given 2 equations which are simultaneous. To solve this equation, we have to find the values of x and y

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From Equation 2,

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Substitute 5 + y for x in Equation 1

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5 + y + 3y = 13

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