Solve for t
t=\frac{4x}{5}+9
Solve for x
x=\frac{5t-45}{4}
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0.5t=0.4x+3.3+1.2
Add 1.2 to both sides.
0.5t=0.4x+4.5
Add 3.3 and 1.2 to get 4.5.
0.5t=\frac{2x}{5}+4.5
The equation is in standard form.
\frac{0.5t}{0.5}=\frac{\frac{2x}{5}+4.5}{0.5}
Multiply both sides by 2.
t=\frac{\frac{2x}{5}+4.5}{0.5}
Dividing by 0.5 undoes the multiplication by 0.5.
t=\frac{4x}{5}+9
Divide \frac{2x}{5}+4.5 by 0.5 by multiplying \frac{2x}{5}+4.5 by the reciprocal of 0.5.
0.4x+3.3=0.5t-1.2
Swap sides so that all variable terms are on the left hand side.
0.4x=0.5t-1.2-3.3
Subtract 3.3 from both sides.
0.4x=0.5t-4.5
Subtract 3.3 from -1.2 to get -4.5.
0.4x=\frac{t-9}{2}
The equation is in standard form.
\frac{0.4x}{0.4}=\frac{t-9}{0.4\times 2}
Divide both sides of the equation by 0.4, which is the same as multiplying both sides by the reciprocal of the fraction.
x=\frac{t-9}{0.4\times 2}
Dividing by 0.4 undoes the multiplication by 0.4.
x=\frac{5t-45}{4}
Divide \frac{t-9}{2} by 0.4 by multiplying \frac{t-9}{2} by the reciprocal of 0.4.
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Simultaneous equation
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Integration
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Limits
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