Question

7x − 8 = 3x + 4
2. x + 2 = 3 − 2x + 8
3. 4 − y + 2y = 6 − 2y + 1
4. 3(x + 6) − 40 = 6(x − 3)
5. 2(3x − 2) − 5x = 2(x − 3) + 90
6. 4(x − 1) − 5(3 − x) = 14x − 2(5x − 3)
7. 4x + [−x − (5 + x)] = 3
8. 15 − [−3x + (8x − 2)] = 7
9. 6 + {3x − [4x − 1]} = −2
10. 22 − [3x − (2x − 1)] = 5x + {6 − [2x − 7(x − 1)]}

Answer 1

Respuesta:

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Explicación paso a paso:

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Answer 2

Respuesta:

1. 7x=3x+4+8

7x−3x=12

4x=12

x=3

2. x+2=−2x+11

x=−2x+11−2

x=−2x+9

x+2x=9

3x=9

x=3

3. 4+y=6−2y+1

y=−2y+7−4

y=−2y+3

3y=3

y=1

4. 3x+18−40=6x−18

−22=6x−18−3x

−22=3x−18

−4=3x

x = -4/3

5. 6x−4−5x=2x−6+90

x−4=2x+84

−4=x+84

x=−88

6. 4x−4−15+5x=14x−10x+6

9x−19=4x+6

9x=4x+25

5x=25

x=5

7. 4x+−x−5−x=3

4x−x−5−x=3

2x−5=3

2x=8

x=4

8. 15+3x−8x+2=7

17−5x=7

−5x=7−17

−5x=−10

x=2

9. 5−x=−2

−x=−2−5

x=7