Find the solution of 7x = 35, and verify your solution using substitution.

a. x = 245; 7(35) = 245, 245 = 245
b. x = 6; 7(6) = 35, 35 = 35
c. x = 5; 7(5) = 35, 35 = 35
d. x = –5; 7(–5) = 35, –35 = –35

x = 7

Step-by-step explanation:

In order to solve 7x = 35 you need to divide both sides by 7.

7x/7 = 35/7

x = 5

To verify your solution you multiply 7 x 5 = 35.

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

6: 07 is your answer

step-by-step explanation: