Answer:
1.3x+10=5x
-5x+3x=-10
-2x=-10
x=5
2. x+3=12
x=12-3
x=9
3. 3x+4=5x
-5x+3x=-4
-2x=-4
x=2
4. x+5=2x-3
-2x-x=-3-5
-x=-8
x=8
5. 2x+6=20
2x=20-6
2x=14
x=7
6. x+8=15
x=15-8
7. 9x+1=28
9x=28-1
9x=27
x=3
but the value of x is impossible to the expression of the base
I hope it helps:)
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Answers & Comments
Answer:
1.3x+10=5x
-5x+3x=-10
-2x=-10
x=5
2. x+3=12
x=12-3
x=9
3. 3x+4=5x
-5x+3x=-4
-2x=-4
x=2
4. x+5=2x-3
-2x-x=-3-5
-x=-8
x=8
5. 2x+6=20
2x=20-6
2x=14
x=7
6. x+8=15
x=15-8
x=7
7. 9x+1=28
9x=28-1
9x=27
x=3
but the value of x is impossible to the expression of the base
I hope it helps:)