If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to y from the second equation is substituted into the first equation.

2x − 7y = 4
3x + y = −17

a) 2(3x − 17) − 7y = 4
b) 2(−3x − 17) − 7y = 4
c) 2x − 7(3x − 17) = 4
d) 2x − 7(−3x − 17) = 4

option D

2x − 7(−3x − 17) = 4

Step-by-step explanation:

Given in the question two equations

2x - 7y = 4

3x + y = -17

Rearranging equation 2 in terms of y

3x + y = -17

y = -17 - 3x

Put this value of y in Equation 1

2x - 7y = 4

2x - 7(-17 - 3x) = 4

So,

If you use the substitution method to solve the following system, new equation will be

step-by-step explanation:

the true statements are:

r = set of real numbers

n = set of natural numbers, 1,2,

w = n u{0} = {0,1,}