Answer:
yes
Step-by-step explanation:
5(3x+4)
5*3=15
5*4=20
15x+20
Answer:
(5,4)
Step-by-step explanation:
-x+2y=3
3x-2y=7
Add the like terms( 2y and -2y)(-x and 3x)(3 and 7) together. Do this vertically. 2y and -2y cancel eachother out.
Divide both sides by 2
To find y, substitute x in for y in one of the equations
add 5 to both sides
Divide both sides by 2
Check:
Answer:
128
Step-by-step explanation:
Answer:
7 3/4
Step-by-step explanation: