Question

brainly can you solve the maths of class 8​

Answer 1

Yes

Simplifying 10x + -7 = 3x + 21 Reorder the terms: -7 + 10x = 3x + 21 Reorder the terms: -7 + 10x = 21 + 3x Solving -7 + 10x = 21 + 3x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3x' to each side of the equation. -7 + 10x + -3x = 21 + 3x + -3x Combine like terms: 10x + -3x = 7x -7 + 7x = 21 + 3x + -3x Combine like terms: 3x + -3x = 0 -7 + 7x = 21 + 0 -7 + 7x = 21 Add '7' to each side of the equation. -7 + 7 + 7x = 21 + 7 Combine like terms: -7 + 7 = 0 0 + 7x = 21 + 7 7x = 21 + 7 Combine like terms: 21 + 7 = 28 7x = 28 Divide each side by '7'. x = 4 Simplifying x = 4