Solve for x
x=\frac{2T+424}{7}
Solve for T
T=\frac{7x}{2}-212
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3.5x-212=T
Swap sides so that all variable terms are on the left hand side.
3.5x=T+212
Add 212 to both sides.
\frac{3.5x}{3.5}=\frac{T+212}{3.5}
Divide both sides of the equation by 3.5, which is the same as multiplying both sides by the reciprocal of the fraction.
x=\frac{T+212}{3.5}
Dividing by 3.5 undoes the multiplication by 3.5.
x=\frac{2T+424}{7}
Divide T+212 by 3.5 by multiplying T+212 by the reciprocal of 3.5.
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