solve 2x+3=7 — step-by-step solution

Let's solve in

ℝ

2 x + 3 = 7

ⓘ We subtract

3

from both sides

2 x = 7 - 3

ⓘ Start from

7

and move back

3

on the number line:

7 - 3

4

2 x = 4

ⓘ Both sides are divided by

2

x = \frac{4}{2}

ⓘ We simplify the fraction by dividing the numerator and the denominator by

2

, their greatest common divisor:

\frac{4}{2}

2

▶Solution obtained:

x = 2