Answer:
x = - 21
Step-by-step explanation:
= - 3 ( multiply both sides by 11 to clear the fraction )
- 12 + x = 11 × - 3 = - 33 ( add 12 to both sides )
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1) 3x=7-y
X=7-y/3
2) 4x=16-y
X=16-y/4