Решить Уравнение:
1)3=4(x+2)
2)-7=5(x+5)
3)9=5(x+9)
4)7(x-1)=3x
5)9(x+7)= -x
6)5(x-3)=4x
1)3=4(x+2)
2)-7=5(x+5)
3)9=5(x+9)
4)7(x-1)=3x
5)9(x+7)= -x
6)5(x-3)=4x
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Answers & Comments
1. 3=4×+8
4×=3-8
4×=-5
×=-5/4
×=-1,25
2. -7=5×+25
5×=-7-25
5×=-32
×=-32/5
×=-6,4
3. 9=5×+45
5×=9-45
5×=-36
×=-36/5
×= -7,2
4. 7×-7=3×
7×-3×=7
4×=7
×=7/4
×= 1,75
5. 9×+63=-×
9×+×=-63
10×=-63
×=-6,3
6. 5×-15=4×
5×-4×=15
×=15