Answer:

Step-by-step explanation:

Move 2x to left hand side and change it's sign
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Move 5 to right hand side and change it's sign
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Collect like terms
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Calculate
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Hope I helped!
Best regards!!
Answer:
i think its multiplication property of equality
Step-by-step explanation:
19 + n = 30
19 + n - 19 = 30 - 19
n = 11
Answer:
If i am correct,
f(4) = -8
g(-3) = 39
Step-by-step explanation:
Answer:
X=7
Step-by-step explanation: