From the first equation,
x+5 = 3(y+5)
x = 3y + 15 - 5
Now substitue x in the second equation with (3y +15 - 5).
x-5 = 7(y-5)
(3y+15-5) - 5 = 7(y-5)
3y +5 = 7y - 35
-4y = - 40
y = 10
Since y is 10, and x is (3y +15 - 5),
x = 30 + 15 - 5 = 40
The answer is 15 i think i don't know
Answer:
88 cm²
Step-by-step explanation:
6*2*2+2*2= 28 cm² sides
6*3*2= 36 cm² top and bottom
3*4*2= 24 cm² front and back
28+36+24= 88 cm²
Answer:
19
Step-by-step explanation:
4×4= 16+12= 28
2×3= 6+3= 9
28-9= 19
