Algerbra 1B
posted by dillon .
Solve Each Sysem Using Substitution. Check ach solution.
a = 2/5b 3
a = 2b  18
c = 3d  27
4d + 10c = 120
Thanks, hope someone helps

Please try yourself first. In the first pair use (2 b  18) for a in the first equation and solve it for b, then go back and get a
In the second pair use (3d27) for c and solve for d. Then go back and get c