Q: What is the answer to the equation 3C-15 for C equals 21?

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The general equation of the line is y = 3x + c. Having only one coordinate (21) of a point on this line is not enough to evaluate c.

The equation is 21 x 100 = 2100 which is MMC in roman numerals.

It is an equation ... Anything with an equals is an equation 2+b=6 Anything without an equals is an expression 2+a

An equation where c = 5

p+c=r.

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The general equation of the line is y = 3x + c. Having only one coordinate (21) of a point on this line is not enough to evaluate c.

2/7*C = 4/21 Multiply both sides of the equation by 7 to eliminate the LHS denominator: 2*C = 28/21 Multiply both sides of the equation by 21 to eliminate the RHS denominator: 42*C = 28 Divide both sides of the equation by 42 to find the value of C: C = 28/42 or C = 2/3 in its lowest terms.

The equation is 21 x 100 = 2100 which is MMC in roman numerals.

It is an equation ... Anything with an equals is an equation 2+b=6 Anything without an equals is an expression 2+a

49 + c units

An equation where c = 5

c is the speed of light in vacuum.

An equation where c = -86

p+c=r.

A quadratic equation.

no

The letter 'c' in that equation represents the speed of light.