Answer:
x=-20
Explanation:
Move all terms not containing
x
to the right side of the equation.
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Subtract
3
4
from both sides of the equation.
x
20
=
−
1
4
−
3
4
Simplify the right side of the equation.
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Combine the numerators over the common denominator.
x
20
=
−
1
−
3
4
Subtract
3
from
−
1
.
x
20
=
−
4
4
Divide
−
4
by
4
.
x
20
=
−
1
Multiply both sides of the equation by
20
.
20
⋅
x
20
=
20
⋅
−
1
Simplify both sides of the equation.
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Cancel the common factor of
20
.
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Cancel the common factor.
20
⋅
x
20
=
20
⋅
−
1
Rewrite the expression.
x
=
20
⋅
−
1
Multiply
20
by
−
1
.
x
=
−
20