What is the answer to (x-1)/2 = 21/3 ?

The answer to (x-1)/2 = 21/3 is x=15

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(x-1)/2 = 21/3

\frac{x - 1}{2} = \frac{21}{3}

x = 15

Solution steps

\frac{x - 1}{2} = \frac{21}{3}

Divide the numbers:

\frac{21}{3} = 7

\frac{x - 1}{2} = 7

Multiply both sides by

2

x - 1 = 14

Move

1

to the right side

x = 15

380 + (- 9 t) = 420 + (- 13) t

x = \frac{5}{( 5 + 4 )}

b = \frac{( 6 \cdot 1 0 ^{12} \cdot 35 \cdot 1 0 ^{8} )}{( 14 \cdot ( 1 0 ^{5} ) ^{3} )}

\frac{x + 3}{4} = \frac{2}{5}

m = (- 3 + 16) + (- 12 + 5) + (- (- 6 + 5 - 5))