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7 = 3(5 + x) solve for x

User Rplnt
by
7.0k points

2 Answers

2 votes

Answer: x = -8/3

Explanation:

7 = 3(5+x)

3(5+x)=7

apply the distributive property

15+3x=7

rearrange the variables to the left side of the equation

3x=7-15

3x=-8

divide on both sides

x=-8/3

User Brian Hvarregaard
by
7.2k points
5 votes

Answer:

x = -8/3

Explanation:

Now we have to,

→ Find the required value of x.

The equation is,

→ 7 = 3(5 + x)

Then the value of x will be,

→ 7 = 3(5 + x)

→ 7 = 3(5) + 3(x)

→ 7 = 15 + 3x

→ 7 - 15 = 3x

→ -8 = 3x

→ 3x = -8

→ [ x = -8/3 ]

Hence, the value of x is -8/3.

User RamBen
by
7.7k points