Simplify the expression 1/2(h+4) - 1/8(h+4) by combining like terms. A. 1/6 (h+4) B. 3h/8 + 2/10 C. 3/8 (h-4) D. 3/8 (h+4) WILL GIVE BRAINLIEST IF THE ANSWER IS CORRECT. ( Its for important grade)

(-21, -38)

Step-by-step explanation:

Given the simultaneous equation

10x-6y = 18 ... 1

9x+6y=39 ...2

Using the Elimination method

Subtract

10x - 9x = 18 - 39

x = -21

substitute x = -21 into 1;

From 1:

10x-6y = 18

10(-21)-6y = 18

-210 - 6y = 18

-6y = 18+210

-6y = 228

y = 228/-6

y =-38

Hence the solution to the system is (-21, -38)