4x - 7 = -3x What is the answer?

Mathematics

2 answers:

givi [52]4 years ago

7 0

Answer: x= 7

Step-by-step explanation:

4x-7= -3x First add -3x on both sides

+3x +3x

7x -7 = 0

+7 +7 add 7 to both sides

7x = 7

x = 1 divide both sides by 7

soldi70 [24.7K]4 years ago

6 0

Answer:

x = 1

Step-by-step explanation:

1. Add 3x to both sides of the problem

4x + 3x - 7 = -3x + 3x
-3x + 3x cancels out and leaves us with zero
7x - 7 = 0

2. Add 7 to both sides

7x (- 7 + 7) = 0 + 7
-7 + 7 cancels out
7x = 7

3. Divide both sides by 7

7x/7 = 7/7
x = 1

To make sure our answer is correct we can plug in 1 to x in the problem

4(1) - 7 = -3(1)
4 - 7 = -3 : True

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