The substitution property of equality, one of the eight properties of equality, states that if x = y, then x can be substituted in for y in any equation, and y can be substituted for x in any equation.
Answer:

Step-by-step explanation:
Given equation :

Making the terms of 'x' to one side and constants to the other.






So, the value of 'x' is 29.
Answer:
made a mistake in step 3
Step-by-step explanation:
from step2; 1/3k=15 then making k the subject ,k=15*3 so the value of k will be 45
Answer:
To find the x-intercept you need to plug in 0 for the y value and solve for x.
Step-by-step explanation:
2x - 4y = 7
if y = 0
2x - 4(0) = 7
Now solve to find the value of x.
Answer:
Both the answers will be B