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IRISSAK [1]
3 years ago
12

A. 3 units b. 8 units c. 13 units d. 33units

Mathematics
1 answer:
Dennis_Churaev [7]3 years ago
6 0
4x+1=2x+7

2x-2x=0

move 2x to the left hand side. The sign changes from positive to negative for 2x.

4x-2x=7-1

move 1 to the right hand side. The sign for 1 changes from positive to negative.

2x= 6

Then divide by 6 for each number .

x = 3

Answer : a
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8 + |x -2| = 8<br><br>|x + 1| +5 = 2<br><br>4|x - 3|= -16<br><br>3|x +10| = 0
zhannawk [14.2K]
<h3>Given</h3>

(a) 8 + |x -2| = 8

(b) |x + 1| +5 = 2

(c) 4|x - 3|= -16

(d) 3|x +10| = 0

<h3>Find</h3>

x

<h3>Solution</h3>

(a) |x -2| = 0 . . . . . subtract 8

... x -2 = 0 . . . . . . . only one solution, because -0 = 0

... x = 2

(b) |x +1| = -3 . . . . subtract 5. No solution. (an absolute value cannot be negative)

(c) No solution. (see (b))

(d) |x +10| = 0 . . . . divide by 3

... x +10 = 0 . . . . . . one solution. (see (a))

... x = -10

5 0
3 years ago
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Step-by-step explanation:

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7 0
4 years ago
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