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Roman55 [17]
3 years ago
13

Solveeee both i neeeeeedddd hellllpppp

Mathematics
1 answer:
SCORPION-xisa [38]3 years ago
5 0
Short answer: C
Remark
Since b is all by itself in equation 2, Substitute it into equation 1.

2a + 3b = 5
b = a - 5                       Put this result in equation 1. Be sure and use brackets.
2a + 3(a - 5) = 5          Remove the brackets.
2a + 3a - 15 = 5           Notice the -5 inside the brackets becomes - 15
                                    Combine like terms on the left.    
5a - 15 = 5                   Add 15 to both sides
5a = 5 + 15
5a = 20                        Divide by 5
a = 20/5
a = 4

So far, c is the only possible answer.
b = a - 5
b = 4 - 5
b = - 1






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Step-by-step explanation:

Given

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Required

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