Snairahespirituid
Answered

what is the answer of the inequality x+y=8 and y=x+6 using substitution method

Sagot :

x + (x+6) = 8
2x + 6 = 8
2x = 8 -6
2x = 2
2x/2x = 2/2
x = 1

Substitute 1 for x to solve for y:
y = x + 6
y = 1 + 6
y = 7

ANSWER: x = 1;  y = 7

Check:
x + y = 8
1 + 7 = 8
8 = 8

y = x + 6
7 = 1 + 6
7 = 7

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