To make the two sets of equation true, we should find the value of x. First, we must transfer the constants and variables to the right and left sides of the equation, respectively, thus:
10x + 3 = 3x -4
10x – 3x = -4 + -3
Then, we solve for x:
7x = -7
Divide both sides by 7 to find x:
7x/7 = -7/7
x = -1
Now, we replace x with -1, then check:
10(-1) + 3 = 3(-1) – 4
-10 + 3 = -3 – 4
-7 = -7
