Sagot :
R: Let x = the number
4+3x= another number
E: x+4+3x=52
S: x+4+3x=52
4x+4=52
4x=48
x=12; 4+3x=40
A: The numbers are 12 and 40.
C: x+4+3x=52
12+4+3(12)=52
16+36=52
52=52
4+3x= another number
E: x+4+3x=52
S: x+4+3x=52
4x+4=52
4x=48
x=12; 4+3x=40
A: The numbers are 12 and 40.
C: x+4+3x=52
12+4+3(12)=52
16+36=52
52=52
x-first number
y-another number
x=3y+4
x+y=52
Substitute:
3y+4+y=52
Add like terms
4y+4=52
Subtract both sides by 4 to remove the 4 on the left
4y=48
Divide both sides by 4
y=12
x=3y+4
Substitute
x=3(12)+4
x=36+4
Add like terms
x=40
Hope this helps =)
y-another number
x=3y+4
x+y=52
Substitute:
3y+4+y=52
Add like terms
4y+4=52
Subtract both sides by 4 to remove the 4 on the left
4y=48
Divide both sides by 4
y=12
x=3y+4
Substitute
x=3(12)+4
x=36+4
Add like terms
x=40
Hope this helps =)