(x,y)=(-0.9,4.9)
{3.1 + y=8
{2x + 2y = 8
{y=4.9
2x + 2y = 8
2x + 2×4.9 = 8
x=-0.9
Answer:
8cm
Step-by-step explanation:
multiply
1/4
3/12
Simplify. Both numbers can be divided by 3.
3/12 = 1/4
1/2 or 0.5
-8a - 7b - 7c
-8a - 2b - 10c - (5b - 3c)
Negate 5b and -3c
-8a - 2b - 10c - 5b + 3c = -8a - 7b - 7c
