Answer:
B. (-1, 2) and (4,7)
Step-by-step explanation:
Solve for the first variable in one of the equations, then substitute the result into the other equation.
X+(x+2)=138
2x+2=138
2x=136
x=68
Final answers: 68,70
Answer:
135
Step-by-step explanation:
you subtract 160 from 25
you get 135
to check you do 135 + 25 and you get 160
Given:
To find:
The values of x.
Solution:
We have,
(Distributive property)
(Combining like terms)
Add 28 on both sides.
Subtract 10x from both sides.
Divide both sides by 14.
Therefore, the values of x are all real numbers less than 2, i.e., x<2 .
Answer:
x=59
Step-by-step explanation:
3x+3=180
3x=177
x=59
