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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

1 answer

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 (3d-27) for c and solve for d. Then go back and get c
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