Question

buna . ma puteti ajuta cu acest exercitiu ?

Answer 1

58) x+4=1
x=1–4
x=–3
x+6=2
x=2–6
x=–4

x+8=2
x=2–8
x=–6

x+7=3
x=3–7
x=–4

x–5=–3
x=–3+5
x=2

x–2=–5
x=–5+2
x=–3

2x=–8
x=–8/2
x=–4

3x=–6
x=–6/3
x=–2

–4x=12
x=12/–4
x=–3

–3x=15
x=15/–3
x=–5

x:(–5)=4
x×1/–5=4
x/5=4
x=20

x:(–7)=–3
x×1/7=–3
x/7=–3
x=–3×7
x=–21

20:x=–10
x=–10×20
x=–200

–18:x=–2
x=–2×(–18)
x=36


2x–5=–9
2x=–9+5
2x=–4
x=–4/2
x=–2

3x+4=–5
3x=–5–4
3x=–9
x=–9/3
x=–3

4x–1=–9
4x=–9+1
4x=–8
x=–8/4
x=–2

7–5x=–13
–5x=–13–7
–5x=–20 |*(–1)
5x=20
x=20/5
x=4

2–9x=–25
–9x=–25–2
–9x=–27|*(–1)
9x=27
x=27/9
x=3

6–4x=–22
–4x=–22–6
–4x=–28|*(–1)
4x=28
x=28/4
x=7