The value of x is 35
<h3>What are algebraic expressions?</h3>
Algebraic expressions are expressions consisting of variables, terms, constants and factors.
They are also made up of arithmetic operations such as addition, subtraction, multiplication, division, etc.
We have that;
5(x+20)= 7x+30
expand the bracket
5x + 100 = 7x + 30
collect like terms
5x -7x = 30 - 100
add like terms
- 2x = -70
Make 'x' the subject
x = -70/ -2
x = 35
Thus, the value of x is 35
Learn more about algebraic expressions here:
brainly.com/question/4344214
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