Solve for t
t=5
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7t-3=4t+12
Combine 2t and 5t to get 7t.
7t-3-4t=12
Subtract 4t from both sides.
3t-3=12
Combine 7t and -4t to get 3t.
3t=12+3
Add 3 to both sides.
3t=15
Add 12 and 3 to get 15.
t=\frac{15}{3}
Divide both sides by 3.
t=5
Divide 15 by 3 to get 5.
Examples
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y = 3x + 4
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Matrix
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\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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