Question

Algebra
(3x + 4y) + 7 = 3x + (4y + 7)

Answer 1

7=7 and 7=7

infinite solutions?

Explanation:

Let's solve for x.

3x+4y+7=3x+4y+7

Step 1: Add -3x to both sides.

3x+4y+7+−3x=3x+4y+7+−3x

4y+7=4y+7

Step 2: Add -4y to both sides.

4y+7+−4y=4y+7+−4y

7=7

Step 3: Add -7 to both sides.

7+−7=7+−7

0=0

Let's solve for y.

3x+4y+7=3x+4y+7

Step 1: Add -4y to both sides.

3x+4y+7+−4y=3x+4y+7+−4y

3x+7=3x+7

Step 2: Add -3x to both sides.

3x+7+−3x=3x+7+−3x

7=7

Step 3: Add -7 to both sides.

7+−7=7+−7

0=0

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