Algebra Examples

Solve for y 2.8-y/0.7=1.8
2.8-y0.7=1.8
Step 1
Simplify each term.
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Step 1.1
Multiply by 1.
2.8-1y0.7=1.8
Step 1.2
Factor 0.7 out of 0.7.
2.8-1y0.7(1)=1.8
Step 1.3
Separate fractions.
2.8-(10.7y1)=1.8
Step 1.4
Divide 1 by 0.7.
2.8-(1.428571y1)=1.8
Step 1.5
Divide y by 1.
2.8-(1.428571y)=1.8
Step 1.6
Multiply 1.428571 by -1.
2.8-1.428571y=1.8
2.8-1.428571y=1.8
Step 2
Move all terms not containing y to the right side of the equation.
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Step 2.1
Subtract 2.8 from both sides of the equation.
-1.428571y=1.8-2.8
Step 2.2
Subtract 2.8 from 1.8.
-1.428571y=-1
-1.428571y=-1
Step 3
Divide each term in -1.428571y=-1 by -1.428571 and simplify.
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Step 3.1
Divide each term in -1.428571y=-1 by -1.428571.
-1.428571y-1.428571=-1-1.428571
Step 3.2
Simplify the left side.
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Step 3.2.1
Cancel the common factor of -1.428571.
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Step 3.2.1.1
Cancel the common factor.
-1.428571y-1.428571=-1-1.428571
Step 3.2.1.2
Divide y by 1.
y=-1-1.428571
y=-1-1.428571
y=-1-1.428571
Step 3.3
Simplify the right side.
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Step 3.3.1
Divide -1 by -1.428571.
y=0.7
y=0.7
y=0.7
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