4. Simplify the expression. -5x + 2x + 7
a. 7x + 7
b. 3x + 7
C. 3x
d. -3x + 7
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4. Simplify the expression. -5x + 2x + 7
a. 7x + 7
b. 3x + 7
C. 3x
d. -3x + 7
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Answer:
D. -3x+7
Step-by-step explanation:
ADD -5x and 2x
because they had the same variable
so;
-5x + 2x= -3
while 7 remained untouch
so it's -3+7
P.S sorry i can't explain it well... Im not good at explaining