How many solutions will each system of equations have? y=-2x+5 and 2x + y = -7

no solution

Step-by-step explanation:

Y=-2x + 5 equation 1

2x + y = -7 equation 2

2x + (-2x+5)=-7 substitute y value from equation 1 into equation 2

2x + -2x + 5 = -7

0 +5=-7

5=-7

no solution

step-by-step explanation:

the multiplicative inverse of a fraction a/b is b/a. for the multiplicative inverse of a real number, divide 1 by the number. for example, the reciprocal of 5 is one fifth 1/5 or 0.2, and the reciprocal of 0.25 is 1 divided by 0.25, or 4.

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3