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Mathematics
Cole
13 July, 00:34
Solve for x: 20 = 3x - 1
+3
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Bobby Moses
13 July, 02:45
0
Let's solve your equation step-by step.
20=3x-1
Step 1:flip the equation.
3x-1=20
Step 2:Add 1 to both sides.
3x-1+1=20+1
3x=21
Step 3:divide both sides by 3.
3x/3=21/3
X=7
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Orlando Chambers
13 July, 02:50
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20=3x-1
move - 1 to the other side
sign changes from - 1 to + 1
20+1=3x-1+1
20+1=3x
21=3x
divide both sides by 3 to get x by itself
21/3=3/3x
Cross out 3 and 3, divide by 3 and then becomes 1*1*x=x
21/3=x
Answer:
x=7
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