×+(-7)=2
Plz someone help
2 answers:
Simplify brackets
x + -7 = 2
Simplify x + -7 to x - 7
x - 7 = 2
Add 7 to both sides
x = 2 + 7
Simplify 2 + 7 to 9
<u>x = 9</u>
Hello there!
x + (-7) = 2
The rules says: When we have + multiply by -, the answer is -
When we have a positive sign multiply by a negative sign, the answer is negative.
Thus,
x - 7 = 2
Add 7 on both sides
x - 7 + 7 = 2 + 7
x = 9
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